sql server tutorials

Drop Primary Key ALTER TABLE statement is used to drop a primary key in SQL Server. Syntax: ALTER TABLE table_name DROP CONSTRAINT…

SQL Server IS NULL Condition (Operator) The SQL Server IS NULL operator is used to test for a NULL value. Syntax: expression…

SQL Server Primary Key SQL Server Primary key is a single field or combination of fields that is used to uniquely define…

SQL Server CROSS JOIN CROSS JOIN produces the result by combining all possibilities of the two or more tables that contain every…

Enable a Foreign Key ALTER TABLE statement is used to enable a foreign key in SQL Server. Syntax: ALTER TABLE table_name CHECK…

SQL Server ISNULL Function It is a built-in function in SQL Server. It allows the user to replace the NULL values with…

SQL Server PROFILER SQL profiler is a GUI tool in Microsoft SQL Server relational database management system that allows us to monitor,…

SQL Server CURRENT_TIMESTAMP Function If we want to get the exact time of a system on which the SQL server is currently…

Enable Primary Key ALTER INDEX statement is used to enable a primary key in SQL Server database. Syntax: ALTER INDEX constraint_name ON…

SQL Server JOINS In real life, we store our data in multiple logical tables that are linked together by a common key…