SQL SELECT INTO - Introduction and syntax
SQL - Dec 03, 2008 at 18:00 PM by Rajmeet Ghai
Explain the SQL SELECT INTO statement. Write SQL syntax for the SQL SELECT INTO
statement along with an example.
SQL SELECT INTO: The SELECT INTO statement selects data from
one table and inserts it into a different table. Used often for creating back
up’s.
Syntax:
SELECT * INTO new_table_name [IN externaldatabase] FROM old_tablename
Example:
SELECT * INTO employee_Backup FROM employee
SQL MINUS returns all rows in the first query that are not returned in the
second query..................
HAVING clause is used to specify some condition along with aggregate
functions............
SQL CONCATENATE: This clause combine together (concatenate) the results from
several different fields...............
SQL INTERSECT allows combining results of two or more select queries. If a
record exists in one query and not in the other, it will be omitted from the
INTERSECT results..............
GROUP BY: It is used with aggregate functions to group the result-set by one or
more columns................
|