如何在MySQL的具有文件路径的列中查找和替换？
为此，请使用MySQLREPLACE()。让我们首先创建一个表-
mysql> create table DemoTable ( FolderLocation text );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable values('C/ProgramFiles/AllMySQLProgram');
mysql> insert into DemoTable values('C/ProgramFiles/JavaChatApplication');
mysql> insert into DemoTable values('C/ProgramFiles/Main/Image.png');使用select语句显示表中的所有记录-
mysql> select *from DemoTable;
这将产生以下输出-
+------------------------------------+ | FolderLocation | +------------------------------------+ | C/ProgramFiles/AllMySQLProgram | | C/ProgramFiles/JavaChatApplication | | C/ProgramFiles/Main/Image.png | +------------------------------------+ 3 rows in set (0.00 sec)
以下是在MySQL中执行查找和替换的查询-
mysql> update DemoTable set FolderLocation=replace(FolderLocation,'C/ProgramFiles','E/MyFolder/Details'); Rows matched: 3 Changed : 3 Warnings : 0
让我们再次检查表记录-
mysql> select *from DemoTable;
这将产生以下输出-
+----------------------------------------+ | FolderLocation | +----------------------------------------+ | E/MyFolder/Details/AllMySQLProgram | | E/MyFolder/Details/JavaChatApplication | | E/MyFolder/Details/Main/Image.png | +----------------------------------------+ 3 rows in set (0.00 sec)