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6 Commits

Author SHA1 Message Date
424b9882bb PostgreSQL 窗口函数 2025-11-04 21:45:04 +08:00
c46757f76f PostgreSQL time 2025-11-04 21:45:04 +08:00
15b1c485d2 PostgreSQL common 2025-11-04 21:45:04 +08:00
8124b5a710 PostgreSQL 处理 collation version 2025-11-04 21:42:32 +08:00
f4225b3fd0 update 2025-11-04 21:42:32 +08:00
3ba651cc51 MySQL common 2025-11-04 21:42:32 +08:00

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@@ -33,5 +33,7 @@ select r.ctid, r.* from study.r;
-- "(0,3)",3,103
-- 删除一条
delete from study.r where id = 101;
-- 得到
delete from study.r where id = 2;
-- 在重新查询,得到
-- "(0,1)",1,101
-- "(0,3)",3,103