摘要:
改变字段的默认值: 为已有的字段添加默认值 ALTER TABLE table_name ALTER COLUMN column_name SET DEFAULT default_value; 删除默认值 ALTER TABLE table_name ALTER COLUMN column_name 阅读全文
摘要:
DO $$ DECLARE r RECORD; BEGIN -- if the schema you operate on is not"current", you will want to -- replace current_schema() in query with 'schematodel 阅读全文