mysql> select version(); +------------+ | version() | +------------+ | 5.7.32-log | +------------+ 1 row in set (0.00 sec) mysql> select @@GLOBAL.sql_mode; +-------------------------------------------------------------------------------------------------------------------------------------------+ | @@GLOBAL.sql_mode | +-------------------------------------------------------------------------------------------------------------------------------------------+ | ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION | +-------------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec) ONLY_FULL_GROUP_BY For SQL that uses GROUP BY to query, fields that do not appear in GROUP BY are not allowed in the SELECT part. That is, the fields in the SELECT query must be those that appear in GROUP BY or use aggregate functions or have unique attributes. STRICT_TRANS_TABLES This option is effective for transactional storage engines, but invalid for non-transactional storage engines. This option indicates that the strict sql mode is enabled. In strict sql mode, in the INSERT or UPDATE statement, if a field value that does not meet the requirements is inserted or updated, an error will be reported directly to interrupt the operation NO_ZERO_IN_DATE The time field value inserted in MySQL does not allow the date and month to be zero NO_ZERO_DATE The time field value inserted in MySQL does not allow the date to be zero ERROR_FOR_DIVISION_BY_ZERO In an INSERT or UPDATE statement, if the data is divided by 0, a warning (in non-strict sql mode) or an error (in strict sql mode) will occur. When this option is turned off, the number is divided by 0, NULL is obtained without warning When this option is enabled and in non-strict sql mode, the number is divided by 0, and NULL is obtained but a warning will be generated When this option is enabled and in strict sql mode, the number is divided by 0, an error occurs and the operation is interrupted NO_AUTO_CREATE_USER The GRANT syntax was used in the previous version. If the user does not exist, the user will be created automatically. This option restricts this function NO_ENGINE_SUBSTITUTION When using the CREATE TABLE or ALTER TABLE syntax to execute the storage engine, if the set storage engine is disabled or not compiled, an error will occur.
[MySQL] mysql 5.7 sql_mode parameter analysis
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