sql_mode (local library)
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
sql_mode (remote library)
STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION
By comparison, it is found that there are "NO_ZERO_IN_DATE, NO_ZERO_DAT" in the local library sql_mode, and the time contains 0, which is illegal. MySQL 5.0 and
above supports three sql_mode modes: ANSI, TRADITIONAL and STRICT_TRANS_TABLES.
ANSI mode: loose mode, check the inserted data, if it does not meet the defined type or length, adjust or truncate the data type and save it, and report a warning.
TRADITIONAL mode: strict mode, when inserting data into the mysql database, the data is strictly checked to ensure that the wrong data cannot be inserted, and an error error is reported. When used for things, the rollback of things will be done.
STRICT_TRANS_TABLES mode: strict mode, the data is strictly verified, the wrong data cannot be inserted, and an error error is reported.
The common values of sql_mode are as follows:
ONLY_FULL_GROUP_BY:
For GROUP BY aggregation operations, if the column in the SELECT does not appear in the GROUP BY, then this SQL is invalid because the column is not in the GROUP BY clause
NO_AUTO_VALUE_ON_ZERO:
This value affects the self-growing column insertion. By default, inserting 0 or NULL generates the next auto-increment value. This option is useful if the user wants to insert a value of 0 and the column is auto-incrementing.
STRICT_TRANS_TABLES:
In this mode, if a value cannot be inserted into a transactional table, the current operation is interrupted, and there is no restriction on non-transactional tables
NO_ZERO_IN_DATE:
In strict mode, the day and month are not allowed to be zero
NO_ZERO_DATE:
Set this value, the MySQL database does not allow zero dates to be inserted, inserting zero dates will throw an error instead of a warning.
ERROR_FOR_DIVISION_BY_ZERO:
During an INSERT or UPDATE, if data is divided by zero, an error is generated instead of a warning. If this mode is not given, MySQL returns NULL when data is divided by zero
NO_AUTO_CREATE_USER:
disables GRANT from creating users with empty passwords
NO_ENGINE_SUBSTITUTION:
throws an error if the required storage engine is disabled or not compiled. When this value is not set, the default storage engine is used instead, and an exception
PIPES_AS_CONCAT is thrown:
"||" is treated as a string concatenation operator instead of an OR operator, which is the same as the Oracle database, and the character The string concatenation function Concat is similar to
ANSI_QUOTES:
after ANSI_QUOTES is enabled, double quotes cannot be used to quote the string because it is interpreted as an identifier.
If you use mysql, in order to keep the habit of using oracle, you can set the sql_mode of mysql as follows:
Add the following configuration to my.cnf
[mysqld] sql_mode='ONLY_FULL_GROUP_BY,NO_AUTO_VALUE_ON_ZERO,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,PIPES_AS_CONCAT,ANSI_QUOTES
Reference: http://blog.csdn.net/wyzxg/article/details/8787878