Yogesh Sharma questions

Yogesh Sharma answers

• Coalesce columns and replace NULL value
• How to properly group results in SQL Server
• How to compare two column value of two row in a single table using sql?
• Select all rows where related table has no records with value
• Joining two rows into one rows (different column) in oracle
• SQL Duplicates optimization
• i want to find first integer value from varchar column
• SQL sum grouped by field with all rows
• is there a way to use qualify in postgresql
• How to count/increment the current number of occurances of a table column in a MS SQL select