Get a column is participating in a primary key or not?
9736
How do you list the primary key of a SQL Server table?
95982
remove duplicate rows in mysql table that does not contain primary key
108071
Find unique columns and column membership
62976
Concatenating a string and primary key Id while inserting
58450
MySQL select where column is not empty
34609
How can I define a composite primary key in SQL?
95344
How do I insert a row which contains a foreign key?
18413
SQL Server - Best way to get identity of inserted row?
49655
Using ALTER to drop a column if it exists in MySQL
100993
ADO.NET DataRow - check for column existence
5176
Sql Server Indexes Include Primary Key?
133675
EntityFramework - contains query of composite key
10831
Join table depending on value of column in main table
13300
How to find an identity of the last inserted row in Entity Framework?
107391
SQL - many-to-many table primary key
41922
MySQL SELECT LAST_INSERT_ID() for compound key. Is it possible?
124471
Comparing nullable column values using "IS NULL" versus "= NULL"