把一个字符串拆分插入到临时表中

[echoxue]

CREATE DEFINER=`root`@`localhost` PROCEDURE `p_commUsed_update_99`(p_ID_in varchar(4000),p_TD_ID_in varchar(10))
BEGIN
CREATE TEMPORARY TABLE tmp_table (SID VARCHAR(15) NOT NULL);

END;

Mysql 中把一个存储过程的参数p_ID字符串根据逗号拆分插入到临时表中

P_ID = ‘sss,www,tttt,ffff’



tmp_table

SID
Sss
www
tttt
ffff

[WWWWA]

用SQL语句直接拆分不行？

[白天的猫头鹰]

写一个存储过程，或者函数，把字符串进行切割插入表变量或临时表中返回就行了

[ACMAIN_CHM]

i 循环中使用 SUBSTRING_INDEX(SUBSTRING_INDEX(p_ID_in,p_TD_ID_in ,i),p_TD_ID_in ,-1)即可

[echoxue]

对啊，如何切割啊

[yumenfeiyu945]

写个循环，一段段截取，或者直接拼成一个sql，prepare执行

[echoxue]

create temporary table if not exists tmp_table
(ServiceID VARCHAR(15) NOT NULL);
SELECT @IDepAirport='SELECT '''+ replace('jfhhffjj,gkggk,jk',',',''' UNION ALL SELECT ''')+''''
INSERT tmp_table call(@IDepAirport);


以前是在sql server上是可以的，但是mysql就不知道了

[echoxue]

以前sql server的代码，
DECLARE @DepCityCode TABLE( cityCode NVARCHAR(10))

set @NewDepAirport='aaa,bb,ccc'

SELECT @IDepAirport='SELECT '''+replace(@NewDepAirport,',',''' UNION ALL SELECT ''')+''''
INSERT @DepCityCode EXEC(@IDepAirport)

这样就会把'aaa,bb,ccc'拆分插入到表
@DepCityCode
cityCode
aaa
bbb
ccc

这个代码在mysql中如何去改啊

[rucypli]

mysql> create procedure sp_testsubstring(a varchar(100))
-> begin
-> declare c int;
-> select length(a)-length(replace(a,',','')) into c;
-> select c,a;
-> while c > 0 do
-> select substring_index(a,',',1) as t;
-> set a=substring(a,instr(a,',')+1,length(a));
-> set c=c-1;
-> end while;
-> select a as t;
-> end
-> /
Query OK, 0 rows affected (0.00 sec)

mysql> call sp_testsubstring('a,b,c')/
+------+-------+
| c | a |
+------+-------+
| 2 | a,b,c |
+------+-------+
1 row in set (0.00 sec)

+------+
| t |
+------+
| a |
+------+
1 row in set (0.00 sec)

+------+
| t |
+------+
| b |
+------+
1 row in set (0.00 sec)

+------+
| t |
+------+
| c |
+------+
1 row in set (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

mysql>

[echoxue]

[Quote=引用 8 楼 的回复:]

mysql> create procedure sp_testsubstring(a varchar(100))
-> begin
-> declare c int;
-> select length(a)-length(replace(a,',','')) into c;
-> select c,a;
-> while c > ……
[/Quote]

不对啊，怎么是在一个字段上

我要的是分开的
ttt
aaaa
bbbb
ccccc
ddddd