How to get all the Tables with or without Primary Key Constraint in Sql Server Database - SQL Server / TSQL Tutorial 59

Scenario:

You are working as SQL Server Developer / SQL Server DBA and you need to get list of tables from a database with information if the table has the primary key constraint or don't have primary key constraint.

Solution:

We are going to use system views in SQL server database to get list of tables with or without Primary Key Constraints.

use YourDatabaseName
go
Select
   T.Table_Catalog as DatabaseName,
   T.Table_Schema AS TableSchema,
   T.Table_Name AS TableName,
   CCU.Column_Name AS ColumnName,
   TC.Constraint_Name AS ConstraintName,
CaseWhen  TC.Constraint_Name isnotNullThen'Yes'
Else'No'Endas HasPrimaryKeyConstraint
From
information_schema.tables T
leftjoin

   information_Schema.Table_Constraints TC 
on T.Table_Catalog=TC.Table_Catalog
and T.Table_Schema=TC.Table_Schema
and T.Table_Name=TC.Table_Name
and TC.Constraint_Type='PRIMARY KEY'

leftJOIN
   Information_Schema.constraint_column_usage CCU  
on TC.Constraint_Name=CCU.Constraint_Name  
and TC.Table_Name=CCU.Table_Name
and T.Table_Type='BASE TABLE'

I execute above code on one of my database and list of tables with Primary Key Constraint or Without Primary Key Constraint.