12:43 Hands on SQL UNION/UNION ALL/IS NULL/IS NOT NULL/ISNULL()/COALESCE() functions with Complete queries 3:56 SQL Server String Concatenation with NULL Values | '+', CONCAT(), CONCAT_WS() 1:47 CONCAT and NULL - SQL in Sixty Seconds 123 0:20 SQL Null Function to check value of column is null or not 9:50 Difference between Union and Union All in Detail(With Null Values ,Duplicate Values ,Diff DataType) 8:20 SQL \"difference between\" interview questions (part 1) 5:52 SQL de A à Z - Jointures 06 - UNION #23 12:36 [MP(I)] Groups - corrected X-ENS type (Cauchy lemma) 6:39 How to concat more than 2 columns in SQL query 7:26 Propagating ID to NULL values & Concatenating on that column 11:58 #7 - FULL OUTER JOIN IN SQL 7:23 Three Ways to Concatenate and how to protect from NULL. | Essential SQL 13:08 UNION ALL Statement in SQL Server 4:09 How to use UNION statement to combine and SELECT table multiple in SQL SERVER Transact SQL #15 2:50 Joining strings by using CONCAT and handling NULL value. 1:00 SQL UNION and UNION ALL: Everything You Need to Know 0:55 SQL Tricks | Easily Concatenate String Values Containing Nulls ! 8:53 Chapter-13a | Three ways to deal with NULL Values, COALESCE, ISNULL, CASE 0:56 CONCAT_WS: Handle SQL NULLs Like a Pro #SQLTutorial 1:25 Inserting NULL Values in a SQL UNION Statement: Solutions Simplified 4:14 MySQL UNIONS are easy 2:37 SQL for Beginners 104 Concatenation on NULL values 4:34 Warning in SQL | Null value is eliminated by an aggregate or other SET operation 9:47 6 SQL Joins you MUST know! (Animated + Practice) 0:21 SQL | Union Vs Union ALL | Which has better performance?