To make a date column null, use ALTER TABLE and MODIFY and set the date to NULL. Following is the syntax −
alter table yourTableName modify column yourColumnName date NULL;
HI,欢迎来到我爱模板网!
To make a date column null, use ALTER TABLE and MODIFY and set the date to NULL. Following is the syntax −
alter table yourTableName modify column yourColumnName date NULL;
(工作日 10:00 - 22:30 为您服务)