Merge pull request #6 from Prerna-Chachare/patch-2

Update README.md

Author: thedevankit-0

README.md

@@ -2,13 +2,21 @@
 
 ## Coding Standreds
 1. Use [ ] brackets to specify coloumn name in select statement.
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-## Shortcurs and Cheatsheet
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+2. Do not use SELECT * as it affects significant performance.
+   For. Eg. SELECT **[ID]**
+                 **, [NAME]**
+                 from Employees;
+3. Select query should have SELECT keyword in Capital Letters.
+   For. Eg. **SELECT** [ID]
+                 , [NAME]
+                 from Employees;
+4. Specify column name on seperate lines.
+   For. Eg. SELECT [ID]
+                 **, [NAME]**
+                 **, [SALARY]**
+                 from Employees;
+5. Comma seperator should be before the start of new column name.
+   For. Eg. SELECT [ID]
+                 **,** [NAME]
+                 **,** [SALARY]
+                 from Employees;