22:52
Unknown
The SQL SELF JOIN is used to join a table to itself as if the table were two tables, temporarily renaming at least one table in the SQL statement.
Syntax:
The basic syntax of SELF JOIN is as follows:
SELECT a.column_name, b.column_name...
FROM table1 a, table1 b
WHERE a.common_filed = b.common_field;
Here, WHERE clause could be any given expression based on your requirement.
Syntax:
The basic syntax of SELF JOIN is as follows:
SELECT a.column_name, b.column_name...
FROM table1 a, table1 b
WHERE a.common_filed = b.common_field;
Here, WHERE clause could be any given expression based on your requirement.
0 comments:
Post a Comment