feat: 更新为null处理

2023-02-10 20:01:16 +08:00 · 2023-02-10 20:01:16 +08:00 · ef4fb94df7
parent b8ff159b31
commit ef4fb94df7
1 changed files with 4 additions and 0 deletions
--- a/sql/sql_examples.sql
+++ b/sql/sql_examples.sql
@ -26,3 +26,7 @@ select distinct domainKey from MetaInfo;

 # 修改字段长度 (修改表user中字段name的长度为50)
 alter table user modify column name varchar(50);
+
+
+# 更新字段为null的值为新值
+update mp_markdown_meta set post_time='1970-01-01 00:00:00' where isnull(post_time) ;