mysql 去除特殊字符 update table set field = replace(replace(replace(field,char(9),''),char(10),''),char(13),''); mysql 去除前后空白字符 update table set field = TRIM(field); 将table 和 field 换成自己的表和字段即可
(一)最原始的方法: delete from test where id not in (select * from ((select min(id) from test group by(name)) as tmptable));删除重复,留下id最小的数据 delete from test where id not in (select * from ((select max(id) from test group by(name)) as tmptable));删除重复,留下id最大的数据
#include "bin/libkci.h" static void exit_nicely(KCIConnection *conn) { KCIConnectionDestory(conn); exit(1); } int main() { KCIConnection *conn; KCIResult *res; int nFields; int i, j; conninfo = "host = localhost port = 54321 dbname = TEST u