height` text, PRIMARY KEY (`uid`)如果我在列名中插入反勾号$sql = "UPDATE user SET `height` = '$height' WHERE uid = '$uid'";UPDATE user SET `height` =|/1.88 m' WHERE uid = '51'
我想传递参数到一个批处理文件,然后插入到mysql数据库。lunch.bat name surname
mysql -uusername -ppassword -e "set @1:=name; set @2:=surname; sourceinsert.sql;"insert into mytable(namecol,surnamecol) values(@1,@2);
有人可以帮我写这两个脚本吗?
我正在尝试编写代码,如果mysql表中有与您要插入的相同的数据,则什么也不做,但如果没有,则插入到表中。这是我到目前为止的代码: $sql = "SELECT * FROM ytable WHERE Titleif (Data about to insert already exists in table){ }*