Answers for "how to replace null values in sql"

SQL
1

replace null with 0 in sql

SELECT IFNULL(Price, 0) FROM Products;
SELECT COALESCE(Price, 0) FROM Products;
-- Oracle (extra):
SELECT NVL(Price, 0) FROM Products;
Posted by: Guest on April-23-2021
1

replace null in sql

CASE WHEN ColumnName IS NULL THEN 'anyText' 
ELSE ColumnName END 
---------EXAMPLE --------------------------
SELECT E.Name as Employee, CASE WHEN M.Name IS NULL THEN 'No Manager' 
   ELSE M.Name END as Manager
FROM  tblEmployee E
LEFT JOIN tblEmployee M
ON   E.ManagerID = M.EmployeeID
Posted by: Guest on August-20-2021
0

how to replace null values in sql

--See records where specific column is NULL
SELECT * from table1 WHERE column1 ISNULL 

--Update all the NULL values in the selected column
UPDATE table1 SET column1 = replace_value WHERE column1 ISNULL
Posted by: Guest on June-14-2021

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