Learn Microsoft ADO. 6m developers to have your questions answered on Linq NOT IN Join of Data Access, formerly OpenAccess ORM LINQ (LINQ specific questions). It’s often easiest to start with the entity that is “most many”, which will let you avoid getting sub collections (which your colleague handled with SelectMany(). Generate composable queries by using Linq IQueryable. Global Temp tables & variables : shared by all client sessions and are destroyed when the last client session exits. Entity Framework Query Samples Devart offers you to try Entity Framework functionality of dotConnect for Oracle with Entity Framework Query Samples. net tutorial we will learn about how to Join multiple tables and return result into view using Asp. So join in memory, i. For instance, joining 2 tables in SQL: SELECT * FROM Table1 AS T1 INNER JOIN Table2 AS T2 ON T1. Skip navigation Part 10 Working with multiple tables in mvc Jamie King 7,636 views. It is defined within the C# or VB code. In this tutorial let us look into how to use Join Query in Entity Framework to load the data from two or more tables. The Entity Framework has to make huge JOINs , concatenations and sorting to fetch the products, prices and suppliers at once thus the result set is much bigger than fetching the collections separately. Calling functions in LINQ queries The LINQ project (see [ 1 ]) is an extension to. If you thought this series would last this long then you must have some eerie metaphysical powers of insight that go beyond mere blind faith in the gods of the interwebs. Join a community of over 2. It takes it almost a second after that to pull all the objects out. I'm using System. object model generating from SQL Server schema query method chaining on IQueryable SQL are translated from expression tree, which is required by IQueryable now it is time to take a deeper look at the detail of SQL Server data CRUD manipulation. 5), and all the "goodies" that it brings to you. Entity Framework (EF), Microsoft's ORM answer to nHibernate, is an excellent tool. This is the seventeenth in a series of posts on how to build a LINQ IQueryable provider. For example, the home page shows a list of all articles from all categories. Entity Framework Core will not be any different. NET web applications into the future. tblCities on n. Join a community of over 2. Left Outer Join. I would like to know if there is any way of conencting two tables with LINQ through IQueryable so as if the id is found on the second table then the results not be displayed. Searching for data often includes multiple fields, data types, and data from multiple tables (especially when using a relational database). Here, step by painful step, is how to build that query. Time to port it to. By Peter Vogel; 03/16/2015. About the Author Mark Shapiro is Segue's Senior Software Architect and has been with the company since 1998. Efficient querying with LINQ, AutoMapper and Future queries 11 March, 2014. This means that we can't call Queryable's Any method (the one that accepts an Expression>) and our query won't compile!. Whereas relational stores such as SQL Server, with highly normalized designs, are optimized for storing data so that queries are easy to produce, the non-relational stores like Table Storage are optimized for simple retrieval and fast inserts. Use the ToArray method to create an array from results of a LINQ query. Calling ToArray also forces immediate execution of the query. He has a Master's Degree in Software Engineering and over 20 years of work experience in a wide array of languages including Perl, PHP, Java, Delphi (Object Pascal), and C#, and once helped build the network for a major telephone company's dialup ISP. As you can imagine, this quickly becomes very tedious. 6m developers to have your questions answered on Linq NOT IN Join of Data Access, formerly OpenAccess ORM LINQ (LINQ specific questions). But what about multiple list joining is it in the same way or are there any challanges in the implementation. If you use a reference or collection property in a LINQ query, XPO automatically adds required JOIN statements to a SQL query (Specifics of joining data from multiple tables in XPO). If I want to join two tables, where should I implement the join logic? Inside or outside the repository? Currently my return type is IQueryable from the Repository and I am doing join on the Business layer after calling GetAll() function (returns IQueryable ) of the required tables. [Entity Framework] Using Include with lambda expressions October 3, 2010 Thomas Levesque 15 Comments I'm currently working on a project that uses Entity Framework 4. And: We use the Join() method with lambda expression arguments. Types of UDFs:. How do we specify the query using the interface. Specifies associations, that should be loaded for each loaded record from current table. NET MVC Tutorial Series, we will follow a step by step approach to develop an Online Shopping Cart using ASP. In the next two section, I will apply Postel's law to explain why that is. Linq queries. Union(filter2);Now, what is the difference b/w Concat() & Union() or when we use it?Union removes duplicates. Where(r => r. I have the following code to join two table. The first step is to define an interface:. NET data reader. I call the UNION statement from the first query and then finally call the distinct method to ensure distinct rows are. Here sal is the object of table tblSalary and emp is the object of table tblEmployee. The crossed methods are not supported by LINQ to Entities (the list provided by MDSN is not up to date), because they cannot be translated to proper SQL database operations. 3 Running LINQ on a cluster with DryadLINQ In order to perform computations on very large datasets we need to pool the resources of multiple computers. A Tutorial on Building SQL in VBA. JOINS in LINQ. Something like this, but it doesn't compile:. Well, left join isn’t actually exact similar to original sql query syntax, that means, we don’t have any keyword(‘left join’) to use. and in select new i must have the amount from InStock if i have the record and after that from OutStock if i have the record. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. tblSalary, emp => emp. Sometimes, you need to apply inner join with and condition. In this article, you will learn about the main differences between Temp Table, Table variable and CTE. When we talk about LINQ, we consider two collections IEnumerable and IQueryable. Core and trying to dynamically order the results based on user. Execute Raw SQL in Entity Framework Core From time to time your ORM is going to let you down in some way. LINQ to SQL is a built-in O/RM (object relational mapper) that ships in the. Why Join Become a member Login Func, you learned the basics of how to get data from multiple tables using parameters when combining LINQ. More Providers - MySQL and SQLite join the previous MS only line up. The second 2 lines display the result of String. Inner Join Inner join returns only those records/rows that match/exists in both the tables. join cs in context. Optimizing Sum, Count, Min, Max and Average with LINQ. Introduction: In this article I am going to share how to use C# "params" keyword and its equivalent "ParamArray" in VB. In this example we will write LINQ Left outer join on tblEmployees and tblDepartments table. This method has at least one parameter of type Expression whose type argument is one of the Func types. Query Syntax or Query Expression Syntax Method Syntax or Method Extension Syntax or Fluent Query Syntax. Re: Joins and Left Outer Joins in LINQ-Do you want groups with that? The above, LINQ queried are only for select. What I can't wrap my head around is how to get the. Dapper Tutorial Dapper What's Dapper? Dapper is a simple object mapper for. Hi everyone, I am trying joining multiple tables on multiple checkbox checked. There are two basic ways to write a LINQ query to IEnumerable collection or IQueryable data sources. What is Entity Framework? •Microsoft ADO. Hi everyone, I am trying joining multiple tables on multiple checkbox checked. We test the general performance of string. By Peter Vogel; 03/16/2015. We had seen in earlier posts how to left join and right join 2 lists using LINQ. /list_tables. In a LINQ query expression, join operations are performed on object. 1+ Part 1 and parameters for the From/Join part of the query. The same approach can be followed if you use LINQ in. If I want to join two tables, where should I implement the join logic? Inside or outside the repository? Currently my return type is IQueryable from the Repository and I am doing join on the Business layer after calling GetAll() function (returns IQueryable ) of the required tables. 6m developers to have your questions answered on Multiple LINQ Join conditions with differing comparison operators of Data Access, formerly OpenAccess ORM LINQ (LINQ specific questions). contact_addresses join cc in myDataContent. NET Elasticsearch LINQ Entity Framework C#. This join returns records or rows that are a multiplication of record number from both the tables means each row on the left table will be related to each row of a right table. NET Core project that I have left it for quite a long time. This means that we can't call Queryable's Any method (the one that accepts an Expression>) and our query won't compile!. Prepare for Microsoft Exam 70-487, and help demonstrate your real-world mastery of developing Azure and Web Services. tblCities on n. 1 but 1) Then I've created a Linq query in order to retrieve the data. Well, left join isn't actually exact similar to original sql query syntax, that means, we don't have any keyword('left join') to use. NET, Entity Framework, LINQ to SQL, NHibernate / LINQ to SQL join 3 tables and select multiple columns LINQ to SQL join 3 tables and select multiple columns [Answered] Locked RSS. The same approach can be followed if you use LINQ in. Net If you are new to DataTables. Here is an example on joining two tables using lambda expression. I have table name T_Talepler I have different 3 table T_Klas, T_Konaklama, T_IL This 3 table foreign key T_Talepler. In the query above, the SelectCarReadModel extension method is called to transform the ctx. There are many scenarios where filtering on partial RowKeys makes sense. Learn Microsoft ADO. Something like this, but it doesn't compile:. Repository patterns in. Properties or fields from the index that have not been matched together by name are skipped during the object creation/mapping. In this tutorial let us look into how to use Join Query in Entity Framework to load the data from two or more tables. PartitionedTable class. NET Entity Framework approaches data access from a perspective that is new to many developers, what might be expected behavior in EF can stump developers who are new to working with the technology. Posts about Extension Methods written by peteohanlon. NET Elasticsearch LINQ Entity Framework C#. Hi everyone, I am trying joining multiple tables on multiple checkbox checked. Queryable Extensions¶. Concat(filter2); var filter4 = filter1. So what we can do is start out with the exact method that you have of joining the data into an anonymous object. The simplest join is a Cross Join, or Cartesian Join, which is a many-to-many join between two sets of data. This join returns records or rows that are a multiplication of record number from both the tables means each row on the left table will be related to each row of a right table. NET Core but can be used in multiple. One common complaint over the years is people using ORMs use the tool identically for both reads and writes. PowerShell, eager as it is, enumerates over IEnumerables to get their results (which makes sense in this context). Can anyone cough up some linq that would actually solve. Each record in one set of data is joined to each record in another set. Calling ToArray also forces immediate execution of the query. NET Framework 3. You can avoid dealing with SQL syntax and write queries directly in C#. /list_tables. NET › Retrieving data with DbContext. NET Core project that I have left it for quite a long time. Posts about IQueryable written by peteohanlon. The Join() method can be used to combine sequences of any two types by matching on a value returned by a key selector for each sequence (you can kind of think of Zip() as a simple case of join where the key is the index of the item). Disclaimer: This site is started with intent to serve the ASP. One common complaint over the years is people using ORMs use the tool identically for both reads and writes. We have 3 tables: Services, ProgramHasService, Programs. Resharper's "Convert to LINQ Metohds chain" function was used to help with this conversion. Merging Multiple IQueryables together - Silverlight. The following example uses the ToArray method to immediately evaluate the query and convert the sequence into an array. About the Author. It is intended to help you learn the features of the. Join is the not as powerful than SelectMany in LINQ to SQL (it cannot perform non-equi-joins. This version makes your stored procedures simpler … though you may have to write a little more code to make the call. NET › Retrieving data with DbContext. You can build and execute queries using Entity Framework to fetch the data from the underlying database. Is Dapper an ORM? Yes and no! People are still arguing about it. Entity Framework Core provides mechanisms for executing raw SQL queries directly against the database in circumstances where you cannot use LINQ to represent the query (e. Both local temporary tables and global temporary tables are physical tables created within the tempdb database. I considered removing it this time, but didn’t care to test for side. Saving a Disconnected Entity in EF 6. MaxValue = 2'147'483'648 public static IQueryable Skip(this IQueryable source, int count); public static IQueryable MyDbView => Query(); modelBuilder. Net If you are new to DataTables. NET MVC C# How linq query fetch data from multiple tables without using join? Selecting multiple columns from data table using linq and displing. About the Author. I need to join two tables accross two different databases and return an ADO dataset. How linq query fetch data from multiple tables without using join? linq query to join multiple tables. Search is a common requirement for most of the applications that we build today. Eager loading will cause EF to pre-load all Authors for all selected Articles (effectively, performing a join). SQL Server :: Join Tables Across Databases And Return An ADO Dataset Aug 18, 2010. In order to retrieve multiple result sets, an overload of DataAdapter. For background on EF, see my previous article, "Introducing ADO. Bringing together the information in multiple tables is called a join, and there are several kinds of joins in both SQL and LINQ. AutoMapper : A convention-based object-object mapper. Personally I think this is a good thing. Query performance for Parquet tables depends on the number of columns needed to process the SELECT list and WHERE clauses of the query, the way data is divided into large data files with block size equal to file size, the reduction in I/O by reading the data for each column in compressed format, which data files can be skipped (for partitioned tables), and the CPU overhead of decompressing the. Where (cal => cal. The Join Query tool could be your friend if you don't have any navigation properties but you still need to join two tables (or more). contact_address_id into gj from subdata in gj. net, entity-framework, sql-server, sql, c#. studentId, crs. Expressions namespace. public IQueryable GetEmployees() { var q = (from n in db. By Peter Vogel; 03/16/2015. LINQ INNER JOIN example : Below is an example of joining multiple tables in linq, notice we have joined based on two columns, customer id and product id, after joining the result set is stored into variable which is anonymous type. In seconds the reason for the big slowdown is isolated. Well the purpose of a join between two tables is to be able to get its corresponding rows. In TSQL I would write it like this. Saving a Disconnected Entity in EF 6. My tables structure like picture. When using an ORM such as NHibernate or Entity Framework with AutoMapper's standard mapper. net from the MSDN documentation The Merge method is used to merge two DataTable. They are dropped automatically when the last session using the temporary table has completed. All associations, specified in selector expression, will be loaded. In previous articles i explained How to Drop or truncate parent table by dropping all foreign key constraints and Query to search any text in all stored procedures, views and functions and Remove first or last character from string or column in sql server and Convert or split comma separated string into table rows in sql server and Temporary tables, their types and examples to use. NET :: Left Outer Join With Multiple Tables And Generic Lists In Linq And VB? Nov 16, 2010. About the Author. Employees join c in db. But imagine that Author has 50 columns and you are only interested in one of them. This is the twelfth in a series of posts on how to build a LINQ IQueryable provider. [RESOLVED] RIA Include Related Tables If this is your first visit, be sure to check out the FAQ by clicking the link above. Breeds on d. NET Boilerplate uses the ambient TransactionScope approach by default, but it also has a built-in implementation for the DbContext transaction API. So, you wouldn't be using a repository in this class. He has a Master's Degree in Software Engineering and over 20 years of work experience in a wide array of languages including Perl, PHP, Java, Delphi (Object Pascal), and C#, and once helped build the network for a major telephone company's dialup ISP. Consultar una Base de Datos con IQueryable LINQ 2/7. I was able to replace the group by with a "group join" using the "into" keyword. Olexander went as far as decompiling. In this tutorial we will use the simple database created in the Entity Framework Database First Approach, but without using the navigation properties. 5), and all the “goodies” that it brings to you. Why use Stored Procedures? One of the most beneficial reasons to use stored procedures is the added layer of security that can be placed on the database from the calling application. We had seen in earlier posts how to left join and right join 2 lists using LINQ. The Include() method works quite well for Lists on objects, but what if there is a need for multiple levels of depth. Complete list of posts in the Building an IQueryable Provider series There’s been a few weeks hiatus since the last installment. I don’t want users to be able to join all those tables in one massive query. You may want to override these steps and use your own predefined stored procedures. Properties or fields from the index that have not been matched together by name are skipped during the object creation/mapping. Initially I am joining tblEmployee and tblSalary. How linq query fetch data from multiple tables without using join? linq query to join multiple tables. Info: The methods return different strings. The definiton of skip and take doesn't allow for more than 2. Skip navigation Part 10 Working with multiple tables in mvc Jamie King 7,636 views. One common complaint over the years is people using ORMs use the tool identically for both reads and writes. LINQ uses Inner Join query operator to get the data from two or more tables based on a common columns, and It will ignore those record, which are not present into both table similar Like SQL Inner Join. the ProgramHasService-table is the relationship table. Please read our previous article before proceeding to this article where we discussed the basics of IEnumerable and IQueryable in C# with some examples. 5), and all the "goodies" that it brings to you. Then the queries appear that join several tables and return Data Transfer Object, and not the domain object. Calling these crossed methods throws NotSupportedException at. In TSQL I would write it like this. This is the seventh in a series of posts on how to build a LINQ IQueryable provider. Learn how to perform inner joins using LINQ in C#. Include extension method requires IQueryable where T is the entity type that the Include() method is applied. C# - LINQ - Remove duplicates from a list and ignore values from another list Posted on January 30, 2017 by Vitosh Posted in C Sharp Tricks My idea for the blog was to post some articles every now and then. How to order by multiple columns using Lambas and LINQ in C# Join For Free. If the user account created for the application or web site is configured with EXECUTE permissions only then the underlying tables cannot be accessed directly by. This is critical for systems with multiple users who are simultaneously updating data stores. ISSUE: In my ASP. Let's say I have a Projects table in my DB with multiple relationships. Manual Linq Vb Net Join Datatable Joining many-to-many DataTables in VB. Types of UDFs:. NET › Retrieving data with DbContext. Global temporary tables are temporary tables that are available to all sessions and all the users. empId , e. The Join method performs an inner equijoin on two sequences, correlating the elements of these sequences based on matching keys. Ultimately, managing data is a requirement for every software project you’ll work on. A blog is nothing without reader's feedback and comments. mark the 'the same LINQ should be inserted here' with some code-marker, e. In the particular case of Queryable. Whatever language you end up with, at some point you will have to deal with data. Global temporary tables are temporary tables that are available to all sessions and all the users. For instance, joining 2 tables in SQL: SELECT * FROM Table1 AS T1 INNER JOIN Table2 AS T2 ON T1. The downside is that I have to go back to using multiple methods, but even then I should only need two: one to get a specific cocktail (or, in this case, BeverageType) by ID, the other to return lists of them by whatever criteria the client. The subquery val with the VALUES expression can be replaced with a table or subquery as source. py cars images These were the tables on our system. NET returning duplicate rows from a working SQL view [SOLVED] How to correct duplicate row data in Entity Framework and LINQ for. The Join extension method has two overloads as shown below. some fake method-call). Windows Azure Tables are a non-relational, key-value-pair, storage system suitable for storing massive amounts of unstructured data. Initially I am joining tblEmployee and tblSalary. With writes, I want tracked entities, managed relationships, cascades and the like. Transactions - Use ADO transactions to control the isolation of your queries & updates. In LINQ this can be a big issue as associations are properties and it's easy to end up issuing a query every time you hit one. 1 but 1) Then I've created a Linq query in order to retrieve the data. LINQ Slides from Gang Luo, Xuting Zhao and Damien Guard. I've read that you cannot join Linq queries across multiple contexts, which makes sense, and I've also read that we can't use Code-First in EF5 to use Stored Procedureswhich led me to using 3 different Linq queries and attempt to combine them into 1 ViewModelI'm just not sure how to get there. LINQ to SQL Tricks: Building Efficient Queries that Include Reference Data or Child Entities Problem Summary Some times you need to read entities from a table along with some properties that are reference data or child entities. If you have not read the previous posts you might want to rethink your place in the universe. Full linq support means that any querying on LLBLGen Pro generated entities can be done through Linq constructs/queries, which makes it an alternative to LLBLGen Pro's own querying API with predicates, relations and the like. In this article I show that this can be actually done very well for most of the common cases. Specifies associations, that should be loaded for each loaded record from current table. About the Author. Once executed, you will see multiples tables. I want the Query result to be displayed in a gridview, but for some reason I see nothing on the gridview. Today, I was required to order a list of records based on a Name and then ID. One of the greatest benefits of LINQ to SQL and LINQ to Entities is navigation properties that allows queries across several tables, without the need to use explicit joins. How do I convert a datatable to an Ilist without. LINQ to SQL Tricks: Building Efficient Queries that Include Reference Data or Child Entities Problem Summary Some times you need to read entities from a table along with some properties that are reference data or child entities. Will you really be joining on these three tables enough to make the use of this method clearer. NET Core project that I have left it for quite a long time. Join(DBContext. Querying Data from multiple tables using LINQ - ASP. A Tutorial on Building SQL in VBA. NET MVC application. Getting All the Results When Joining with LINQ When you want to find all the objects that are missing a corresponding object, then you need the LINQ equivalent of an outer join. But nevertheless maybe this will help you in doing joins with EF: how-to-join-multiple-tables-using-repository-pattern-entity-framework. In this article, you will learn about the main differences between Temp Table, Table variable and CTE. Don't use IEnumerable for table references in C#. DataClassesDataContext db= new DataClassesDataContext ();. We will also explore concept of ViewModel to pass multiple models to view in asp. 4 September 2014. studentVScourses join crs in dataContext. How to use Linq to join entity tables with a cross-reference table Tag:. the ProgramHasService-table is the relationship table. I've definitely seen similar questions, but for some reason, I can't get this query to work correctly. SqlDependency based caching of LINQ Queries August 4th, 2010 Query Notifications is the SQL Server feature that allows a client to subscribe to notifications that are sent when data in the database changes irrelevant of how that change occurs. contact_address_links. Part 24 Left Outer Join in LINQ - Duration: 8. I considered removing it this time, but didn’t care to test for side. In this chapter, you will learn how to save a disconnected entity which is not being tracked by a context in EF 6. I have a working BPM with an LINQ left outer join. There are many scenarios where filtering on partial RowKeys makes sense. NET, Entity Framework, LINQ to SQL, NHibernate / LINQ to SQL join 3 tables and select multiple columns LINQ to SQL join 3 tables and select multiple columns [Answered] RSS. Join multiple tables together and show result row by row joining multiple tables Left joining 2 tables in Linq to entity framework and pass the result to MVC view. LINQ to SQL Tricks: Building Efficient Queries that Include Reference Data or Child Entities Problem Summary Some times you need to read entities from a table along with some properties that are reference data or child entities. Left Outer Joins in LINQ with Entity Framework As I spend more time reviewing code with clients and on public forums, I'm constantly seeing cases where people have issues with Outer joins in LINQ and the various flavors of LINQ. Speed Up Stored Procedures with Table Valued Parameters. The LINQ infrastructure supports similar capabilities through dynamic construction of expression trees using the classes in the System. AutoMapper : A convention-based object-object mapper. Perform inner joins. Something like this, but it doesn't compile:. 0 Released to Heavy Criticism This Lazy Loading. Ignite has multiple query mechanisms that achieve this: ScanQuery : user-defined filter predicate is sent to remote nodes, executed, and matching entries are sent back. Performance issues with multiple includes and large object graphs - Entity Framework 14 August 2015 Comments Posted in Entity Framework, performance. It is always advisable to use navigational properties to query the related data. Dapper Tutorial Dapper What's Dapper? Dapper is a simple object mapper for. Single-Table Queries (LINQ to DataSet) 03/30/2017; 3 minutes to read +6; In this article. What is Entity Framework? •Microsoft ADO. How linq query fetch data from multiple tables without using join? linq query to join multiple tables. We will join Products and Category entities by the Product. 5 release, and which enables you to easily model relational databases using. You can say that IQueryable is one big Liskov Substitution Principle (LSP)violation just waiting to happen. NET MVC Tutorial Series, we will follow a step by step approach to develop an Online Shopping Cart using ASP. Temp Table, Table variable and CTE are commonly used way for storing temporary data. I need to delete multiple rows from my table using List of Ids in where clause. If I want to join two tables, where should I implement the join logic? Inside or outside the repository? Currently my return type is IQueryable from the Repository and I am doing join on the Business layer after calling GetAll() function (returns IQueryable ) of the required tables. Now that Jimmy has done all the hard expression tree work, this article extends his example to include caching and simple flattening capabilities and goes on to show it in use. search( 'Fred' ). In a LINQ query expression, join operations are performed on object. Select * from table_1 as t1 2. Hi everyone, I am trying joining multiple tables on multiple checkbox checked. Learn Microsoft ADO. NET, Entity Framework, LINQ to SQL, NHibernate / How to join multiple tables at a time using LINQ to SQL? How to join multiple tables at a time using LINQ to SQL? [Answered] RSS. Here goes the query for grabbing employee name, salary and department name by joining above said three table using lambda. The LINQ infrastructure supports similar capabilities through dynamic construction of expression trees using the classes in the System. Listing 3: Unittest search with multiple search criteria and paging. (Personally in SOA type architectures, I wouldn't expose IQueryable beyond the BLL, i. In order to retrieve multiple result sets, an overload of DataAdapter. When data is inserted or updated in Table storage, all further accesses to that data will see the latest update. table2var filter3 = filter1. The Entity Framework has to make huge JOINs , concatenations and sorting to fetch the products, prices and suppliers at once thus the result set is much bigger than fetching the collections separately. I hope that. The above example will create the following tables in the database. I was trying to find out how I can join more than 2 tables using the LINQ-to-SQL syntax. The Join extension method has two overloads as shown below. Net I have also tried using LINQ , but that always returns IEnumerable(System. I want to do a search that returns the organisations AND contacts. Also learn about how Ignite LINQ works. Perform inner joins. AlbumPhotoes join photo in entities. Hello, I've a bit more complicated situation: I'm trying to replace an expression subtree within my custom expression visitor - a method call should become a lambda expression (design idea: avoid replicating a LOT of LINQ in our project, e. Please note that this example doesn't actually save to a database at the server. Bringing together the information in multiple tables is called a join, and there are several kinds of joins in both SQL and LINQ. Full linq support means that any querying on LLBLGen Pro generated entities can be done through Linq constructs/queries, which makes it an alternative to LLBLGen Pro's own querying API with predicates, relations and the like. It is the same as inner join of SQL.