From f77da73ff7fe6ec5b902e05a209826dd8cc794f1 Mon Sep 17 00:00:00 2001 From: Ryan Date: Wed, 14 Jun 2023 20:01:46 +0800 Subject: [PATCH] Auto saved by Logseq --- pages/总复习2023t1.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md index 2c64c00..900e690 100644 --- a/pages/总复习2023t1.md +++ b/pages/总复习2023t1.md @@ -1019,6 +1019,13 @@ - Physical database design - LATER SQL - purpose and importance of SQL. + - retrieve data from database and formulate queries using SELECT and + - Use compound WHERE conditions. + - Sort query results using ORDER BY. + - Use aggregate functions. + - Group data using GROUP BY and HAVING. + - Join tables together. + - Use subqueries. - DONE Block 3 collapsed:: true - DONE DB transaction management