MYSQL LIMIT 用法詳解

標籤：retrieve   manual   tab   store   argument   用法詳解   check   table   maximum   

在mysql的limit用法中，網上有這樣的論述：

"//為了檢索從某一個位移量到記錄集的結束所有的記錄行，可以指定第二個參數為 -1： 

mysql> SELECT * FROM table LIMIT 95,-1; // 檢索記錄行 96-last. "

寫這句話的人自己肯定沒有實際去操作，因為這是不對的。

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘-1‘ at line 3

來看看mysql的官方文檔：http://dev.mysql.com/doc/refman/6.0/en/select.html

The LIMIT clause can be used to constrain the number of rows returned by the SELECT statement. LIMIT takes one or two numeric arguments, which must both be nonnegative integer constants(-1退下！), with these exceptions:

Within prepared statements, LIMIT parameters can be specified using ? placeholder markers.

Within stored programs, LIMIT parameters can be specified using integer-valued routine parameters or local variables.

With two arguments, the first argument specifies the offset of the first row to return, and the second specifies the maximum number of rows to return. The offset of the initial row is 0 (not 1):

SELECT * FROM tbl LIMIT 5,10; # Retrieve rows 6-15

To retrieve all rows from a certain offset up to the end of the result set, you can use some large number for the second parameter. This statement retrieves all rows from the 96th row to the last:

SELECT * FROM tbl LIMIT 95,18446744073709551615;

With one argument, the value specifies the number of rows to return from the beginning of the result set:

SELECT * FROM tbl LIMIT 5; # Retrieve first 5 rows
In other words, LIMIT row_count is equivalent to LIMIT 0, row_count.

MYSQL LIMIT 用法詳解