added about access controls

Anuhyapeddi · web-flow · commit 718eef13f165 · 2019-12-28T11:23:14.000+05:30
diff --git a/README.md b/README.md
@@ -366,6 +366,15 @@ create table emp_dup like employee;
 create table emp_dup select * from employee;
 ```
 
+## Access Controls
+
+#### Set new password to a user
+```sql
+use mysql;
+update user set authentication_string=PASSWORD("<new2-password>") where User='<user>';
+flush privileges;
+```
+
 ## Programming
 
 #### Declare variables
@@ -420,4 +429,4 @@ select month("1998-12-30");
 #### Extract Year
 ```sql
 select year("1998-12-30");
-```
+```
