本篇文章给大家主要讲的是关于MySQL中Select Limit使用方法的内容，感兴趣的话就一起来看看这篇文章吧，相信看完MySQL中Select Limit使用方法对大家多少有点参考价值吧。The LIMIT clause can be used to constrain the number of rowsreturned by the SELECT statement.LIMIT takes one or two numeric arguments,which must both be nonnegative integer constants, with these exceptions:limit后面可以跟1或2个参数，必须是非负整数常量。Within prepared statements, LIMIT par开发云主机域名ameters can be specified using? placeholder markers.在预编译语句中，limit参数可使用？占位符。Within stored programs, LIMIT parameters can be specified usinginteger-valued routineparameters or local variables.With two arguments, the first argumentspecifies the offset of the first row to return, and the second specifies themaximum number of rows to return. The offset of theinitial row is 0 (not 1):SELECT * FROM tbl LIMIT5,10; # Retrieve rows 6-15To retrieve all rows from a certain offsetup to the end of the result set, you can use some largenumber for the second parameter. This statement retrieves all rows from the 96th row to thelast:SELECT * FROM tbl LIMIT95,18446744073709551615;With one argument, the value specifies thenumber of rows to return from the beginning of the result set:SELECT * FROM tbl LIMIT5; # Retrieve first 5 rows，返回前5行In other words, LIMIT row_count isequivalent to LIMIT 0, row_count.For prepared statements, you can useplaceholders. The following statements will return one rowfrom the tbl table:SET @a=1;PREPARE STMT FROM ‘SELECT* FROM tbl LIMIT ?’;EXECUTE STMT USING @a;The following statements will return thesecond to sixth row from the tbl table:SET @skip=1; SET@numrows=5;PREPARE STMT FROM ‘SELECT* FROM tbl LIMIT ?, ?’;EXECUTE STMT USING @skip,@numrows;For compatibility with PostgreSQL, MySQLalso supports the LIMIT row_count OFFSET offsetsyntax.If LIMIT occurs within a subquery and alsois applied in the outer query, the outermost LIMIT takesprecedence. For example, the followingstatement produces two rows, not one:(SELECT … LIMIT 1) LIMIT 2;以上关于MySQL中Select Limit使用方法详细内容，对大家有帮助吗？如果想要了解更多相关，可以继续关注我们的行业资讯板块。
下面这篇文章是关于cp网站架设优化MySQL的插入性能几种方法，文字的奥妙在于贴近主题相关。所以，闲话就不谈了，我们直接看下文吧，相信看完cp网站架设优化My开发云主机域名SQL的插入性能几种方法你一定会有所受益。[TOC]cp网站架设【企鹅21717-934…
免责声明：本站发布的图片视频文字，以转载和分享为主，文章观点不代表本站立场，本站不承担相关法律责任；如果涉及侵权请联系邮箱：360163164@qq.com举报，并提供相关证据，经查实将立刻删除涉嫌侵权内容。
微信扫一扫 
