From caeb6d7d68b88d9afef16b1aa8908f3a1c91257b Mon Sep 17 00:00:00 2001 From: tarunsharma967 Date: Sun, 25 Nov 2018 14:50:01 +0530 Subject: [PATCH] index added --- README.md | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 6877792..bb5afe0 100644 --- a/README.md +++ b/README.md @@ -12,6 +12,7 @@ Pull requests are welcome. Enjoy! 4. [ Join Queries. ](#joins) 5. [ View Queries. ](#view) 6. [ Altering Table Queries.](#alter) +7. [Indexing Queries.](#index) # 1. Finding Data Queries @@ -183,7 +184,14 @@ Pull requests are welcome. Enjoy! * `ALTER TABLE` table_name `DROP COLUMN` column_name; + +# 7. Indexing Queries +### **CREATE**: Creates an index on a table. +* `CREATE INDEX` index_name `ON` table_name; +* `CREATE INDEX` index_name `ON` table_name (column_name); +* `CREATE UNIQUE INDEX` index_name `ON` table_name (column_name); +* `CREATE INDEX` index_name `ON` table_name (column1, column2); - - +### **DROP**: Delete an index in a table +* `DROP INDEX` index_name;