Why use triggers in sql?
What are triggers and its types?
what is cursor procedure
how to show all tables with 'mysql'? : Sql dba
What do you understand by case manipulation functions?
How many columns should be in an index?
What is a join?
HOW TO ADD PRIMARY KEY TO TABLE BY PL/SQL PROGRAM
Is sql the best database?
Which one of the following is a reason that an INSERT statement might cause an error instead of executing correctly? 1. The INSERT statement was attempting to insert a record into a view that was created from more than one table. 2. The INSERT statement was attempting to insert a record using a combination of constants and values from an existing table. 3. The INSERT statement was attempting to insert a record with a non-NULL value into a table that has that column defined as NULL. 4. The INSERT statement was attempting to insert a record into a table by selecting a record from that same table. 5. The INSERT statement was attempting to insert a record into a view rather than a table.
What is an alias command?
What is sqlite format?
What is the use of %rowtype?