mysql 之limit用法

1、LIMIT用法

SELECT
[ALL | DISTINCT | DISTINCTROW ]
[HIGH_PRIORITY]
[STRAIGHT_JOIN]
[SQL_SMALL_RESULT] [SQL_BIG_RESULT] [SQL_BUFFER_RESULT]
[SQL_CACHE | SQL_NO_CACHE] [SQL_CALC_FOUND_ROWS]
[code]select_expr

, ...[FROM

table_references

[WHERE

where_condition

][GROUP BY {

col_name

|

expr

|

position

}[ASC | DESC], ... [WITH ROLLUP]][HAVING

where_condition

][ORDER BY {

col_name

|

expr

|

position

}[ASC | DESC], ...][LIMIT {[

offset

,]

row_count

|

row_count

OFFSET

offset

}][PROCEDURE

procedure_name

(

argument_list

)][INTO OUTFILE '

file_name

'

export_options

| INTO DUMPFILE '

file_name

'| INTO

var_name

[,

var_name

]][FOR UPDATE | LOCK IN SHARE MODE]][/code]

2、使用LIMIT常犯错误

LIMIT放错位置

如：select * from news LIMIT 3,10 where class=2 order by publish_time desc  //错误

而应该：select * from news where class=2 order by publish_time desc  LIMIT 3,10

也可以：select * from （select * from news where class=2 order by publish_time desc  ）A LIMIT 3,10