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.
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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 There are some options available in SELECT to affect the ex... -
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...
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