6
Selecting Data
The SELECT statement is used for retrieving data from tables, for select specific data, often based on a criteria given in the WHERE clause.
-
SELECT
SQL statement used primarily for retrieving data from a MariaDB database. -
Joins & Subqueries
Documentation on the JOIN, UNION, EXCEPT and INTERSECT clauses, and on subqueries. -
LIMIT
Documentation of the LIMIT clause. -
ORDER BY
Order the results returned from a resultset. -
GROUP BY
Aggregate data in a SELECT statement with the GROUP BY clause. -
Common Table Expressions
Common table expressions are temporary named result sets. -
SELECT WITH ROLLUP
Adds extra rows to the resultset that represent super-aggregate summaries -
SELECT INTO OUTFILE
Write the resultset to a formatted file -
SELECT INTO DUMPFILE
Write a binary string into file -
FOR UPDATE
Acquires a lock on the rows -
LOCK IN SHARE MODE
Acquires a write lock. -
Optimizer Hints
Optimizer hints are options available that affect the execution plan. -
PROCEDURE
The PROCEDURE Clause of the SELECT Statement. -
HANDLER
Direct access to reading rows from the storage engine. -
DUAL
Dummy table name -
SELECT ... OFFSET ... FETCH
Allows one to specify an offset, a number of rows to be returned, and wheth...
Content reproduced on this site is the property of its respective owners,
and this content is not reviewed in advance by MariaDB. The views, information and opinions
expressed by this content do not necessarily represent those of MariaDB or any other party.
