問題

資料庫大小寫不敏感

庫名，表名敏感：
配置引數lower_case_table_names 可選值 【0，1】0不敏感，1敏感
資料敏感：
排序規則：
　　 *_bin: 表示的是binary case sensitive collation，也就是說是區分大小寫。
　　 *_ci: case insensitive collation，不區分大小寫 。

修改排序規則sql

utf8mb4_general_ci 是字符集查詢條件
CHARACTER SET utf8mb4 COLLATE utf8mb4_bin; 為要變更的字符集與排序規則

表字段修改sql

SELECT TABLE_SCHEMA '資料庫',TABLE_NAME '表名',COLUMN_NAME '欄位名',CHARACTER_SET_NAME '原字符集',COLLATION_NAME '原排序規則',CONCAT('ALTER TABLE ', TABLE_SCHEMA,'.',TABLE_NAME, ' MODIFY COLUMN ',COLUMN_NAME,' ',COLUMN_TYPE,' CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;') '變更SQL'
FROM information_schema.`COLUMNS` 
WHERE COLLATION_NAME RLIKE 'utf8mb4_general_ci';
 

也可以按資料庫過濾 ，增加 and TABLE_SCHEMA='dbName' ，其中dbName為資料庫名稱

結果圖例

複製變更sql 並執行

ALTER TABLE db_norisk_dev.cent_archive_category MODIFY COLUMN cate_name varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_archive_category MODIFY COLUMN created_name varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_archive_category MODIFY COLUMN updated_name varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_dict MODIFY COLUMN key_code varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_dict MODIFY COLUMN key_name varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_dict MODIFY COLUMN created_name varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_dict MODIFY COLUMN updated_name varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_dict_val MODIFY COLUMN dict_code varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_dict_val MODIFY COLUMN dict_val varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_dict_val MODIFY COLUMN created_name varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
ALTER TABLE db_norisk_dev.cent_dict_val MODIFY COLUMN updated_name varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
 

表修改sql

SELECT TABLE_SCHEMA '資料庫',TABLE_NAME '表名',TABLE_COLLATION '原排序規則',CONCAT('ALTER TABLE ',TABLE_SCHEMA,'.', TABLE_NAME, ' COLLATE=utf8mb4_bin') '變更SQL'
FROM information_schema.`TABLES`
WHERE TABLE_COLLATION RLIKE 'utf8mb4_general_ci;';

同上

資料庫修改sql

SELECT SCHEMA_NAME '資料庫',DEFAULT_CHARACTER_SET_NAME '原字符集',DEFAULT_COLLATION_NAME '原排序規則',CONCAT('ALTER DATABASE ',SCHEMA_NAME,' CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;') '變更SQL'
FROM information_schema.`SCHEMATA`
WHERE DEFAULT_CHARACTER_SET_NAME RLIKE 'utf8mb4';
 

同上