修改MySql数据库名称及附带脚本

  1 CREATE DEFINER=`root`@`%` PROCEDURE `move_tables`( IN `source` VARCHAR ( 20 ), IN `target` VARCHAR ( 20 ), IN `is_delete_database` TINYINT )
  2 
  3 BEGIN
  4 
  5 DECLARE
  6 
  7 v_index INT UNSIGNED DEFAULT 0;
  8 
  9 DECLARE
 10 
 11 v_table_name VARCHAR ( 50 );
 12 
 13 CREATE TEMPORARY TABLE table_list (
 14 
 15 id INT auto_increment,
 16 
 17 table_name VARCHAR ( 50 ),
 18 
 19 KEY ( id ));
 20 
 21 INSERT INTO table_list ( table_name ) SELECT
 22 
 23 table_name
 24 
 25 FROM
 26 
 27 information_schema.`TABLES`
 28 
 29 WHERE
 30 
 31 TABLE_SCHEMA = source;
 32 
 33 SELECT
 34 
 35 count( 1 ) INTO v_index
 36 
 37 FROM
 38 
 39 table_list;
 40 
 41 LOOP_LABEL :
 42 
 43 LOOP
 44 
 45 SELECT
 46 
 47 table_name INTO v_table_name
 48 
 49 FROM
 50 
 51 table_list
 52 
 53 WHERE
 54 
 55 id = v_index;
 56 
 57 SET @strsql = concat( ‘RENAME TABLE ‘, source, ‘.‘, v_table_name, ‘ to ‘, target, ‘.‘, v_table_name );
 58 
 59 PREPARE dysql
 60 
 61 FROM
 62 
 63 @strsql;
 64 
 65 EXECUTE dysql;
 66 
 67 DEALLOCATE PREPARE dysql;
 68 
 69 SET v_index = v_index - 1;
 70 
 71 IF
 72 
 73 v_index < 1 THEN
 74 
 75 LEAVE LOOP_LABEL;
 76 
 77 END IF;
 78 
 79 END LOOP;
 80 
 81 DROP TABLE table_list;
 82 
 83 IF
 84 
 85 is_delete_database = 1 THEN
 86 
 87 SET @strdropsql = concat( ‘DROP DATABASE ‘, source );
 88 
 89 PREPARE dysql
 90 
 91 FROM
 92 
 93 @strdropsql;
 94 
 95 EXECUTE dysql;
 96 
 97 DEALLOCATE PREPARE dysql;
 98 
 99 END IF;
100 
101 END

call move_tables(‘db,‘db_20200222‘,0);