SQL Topics
- What is SQL
- SQL Select Query
- SQL Where Query
- SQL Joins Query
- SQL Update
- SQL Count
- SQL Sum
- SQL Operators
- SQL Like
- SQL Group By
- SQL Insert Into
- SQL Inner Join
- SQL Left Join
- SQL Right Join
- SQL Full Join
- SQL Exists
- SQL Null
- SQL Stored Procedures
- SQL Any
- SQL Self Join
- SQL Top Statement
- SQL Delete
- SQL Order By
SQL Exists.
SQL EXISTS condition is used to test whether a correlated subquery returns any results.
If the subquery returns at least one row, the EXISTS condition evaluates to TRUE.
Otherwise, it evaluates to FALSE.