我可以在SQL左联接中使用Substring吗?

时间:2019-08-29 08:45:10

标签: sql

我可以在SQL左连接语句中使用子字符串吗?我试图获取字段的子字符串,然后在我的where条件中使用它。我试过了,但是没用。

Warning: require_once(/var/www/phpChart_Lite//phpChart//conf.php): failed to open stream: No such file or directory in /var/www/phpChart_Lite/server/cls_conf.php(1) : eval()'d code(1) : eval()'d code on line 5

Fatal error: require_once(): Failed opening required '/var/www/phpChart_Lite//phpChart//conf.php' (include_path='.:/usr/share/php') in /var/www/phpChart_Lite/server/cls_conf.php(1) : eval()'d code(1) : eval()'d code on line 5

0 个答案:

没有答案