union

2 years ago · c12c45bd2d
parent e796875b3b
commit c12c45bd2d
2 changed files with 5 additions and 0 deletions
--- a/SQL/lessons/.sql_3.md.swp
+++ b/SQL/lessons/.sql_3.md.swp
--- a/SQL/lessons/sql_3.md
+++ b/SQL/lessons/sql_3.md
@ -89,6 +89,11 @@ SELECT DISTINCT city FROM people;
 ### Unions
 ```sql
 SELECT name FROM people UNION SELECT name FROM companies; -- show distinct values
 SELECT name FROM people UNION ALL SELECT name FROM companies; -- show duplicates
 ```
 ### Truncate
 ### Triggers