The limit in mysql can be used to force the SELECT statement to return the specified number of records. LIMIT accepts one or two numeric parameters. The parameter must be an integer constant. If two parameters are given, the first parameter Specifies the offset of the first returned record row, and the second parameter specifies the maximum number of returned record rows.
#When we use query statements, we often need to return the first few or middle rows of data. What should we do at this time? Don't worry, mysql has provided us with such a function
SELECT * FROM table LIMIT [offset,] rows | rows OFFSET offset
The LIMIT clause can be used to force the SELECT statement to return the specified number of records. LIMIT accepts one or two numeric arguments. The parameter must be an integer constant. If two parameters are given, the first parameter specifies the offset of the first returned record row, and the second parameter specifies the maximum number of returned record rows. The offset of the initial record row is 0 (instead of 1): For compatibility with PostgreSQL, MySQL also supports the syntax: LIMIT # OFFSET #.
mysql> SELECT * FROM table LIMIT 5,10; // 检索记录行 6-15 //为了检索从某一个偏移量到记录集的结束所有的记录行，可以指定第二个参数为 -1： mysql> SELECT * FROM table LIMIT 95,-1; // 检索记录行 96-last. //如果只给定一个参数，它表示返回最大的记录行数目： mysql> SELECT * FROM table LIMIT 5; //检索前 5 个记录行 //换句话说，LIMIT n 等价于 LIMIT 0,n。
mysql> SELECT * FROM table LIMIT 5,10; // 检索记录行 6-15
//为了检索从某一个偏移量到记录集的结束所有的记录行，可以指定第二个参数为 -1： mysql> SELECT * FROM table LIMIT 95,-1; // 检索记录行 96-last. //如果只给定一个参数，它表示返回最大的记录行数目： mysql> SELECT * FROM table LIMIT 5; //检索前 5 个记录行 //换句话说，LIMIT n 等价于 LIMIT 0,n。
Recommended tutorial: "mysql tutorial"
The above is the detailed content of mysql limit usage. For more information, please follow other related articles on the PHP Chinese website!