[sql] where to place CASE WHEN column IS NULL in this query

That looks like it might belong in the select statement:

SELECT id, col1, col2, col3, (CASE WHEN table3.col3 IS NULL THEN table2.col3 AS col4 ELSE table3.col3 as col4 END)
FROM table1
LEFT OUTER JOIN table2
ON table1.id = table2.id
LEFT OUTER JOIN table3
ON table1.id = table3.id

Examples related to sql

Passing multiple values for same variable in stored procedure SQL permissions for roles Generic XSLT Search and Replace template Access And/Or exclusions Pyspark: Filter dataframe based on multiple conditions Subtracting 1 day from a timestamp date PYODBC--Data source name not found and no default driver specified select rows in sql with latest date for each ID repeated multiple times ALTER TABLE DROP COLUMN failed because one or more objects access this column Create Local SQL Server database

Examples related to ms-access

How to get parameter value for date/time column from empty MaskedTextBox Access And/Or exclusions Get length of array? How to pass an array to a function in VBA? How to insert values into the database table using VBA in MS access Access 2013 - Cannot open a database created with a previous version of your application Does VBA contain a comment block syntax? java.lang.ClassNotFoundException: sun.jdbc.odbc.JdbcOdbcDriver Exception occurring. Why? Manipulating an Access database from Java without ODBC How to find longest string in the table column data

Examples related to null

getElementById in React Filter values only if not null using lambda in Java8 Why use Optional.of over Optional.ofNullable? How to resolve TypeError: Cannot convert undefined or null to object Check if returned value is not null and if so assign it, in one line, with one method call How do I assign a null value to a variable in PowerShell? Using COALESCE to handle NULL values in PostgreSQL How to check a Long for null in java Check if AJAX response data is empty/blank/null/undefined/0 Best way to check for "empty or null value"

Examples related to case

PostgreSQL CASE ... END with multiple conditions SQL Server: use CASE with LIKE SQL Server IIF vs CASE SELECT using 'CASE' in SQL SELECT query with CASE condition and SUM() GROUP BY + CASE statement SQL use CASE statement in WHERE IN clause SQL Server - Case Statement where to place CASE WHEN column IS NULL in this query Regarding Java switch statements - using return and omitting breaks in each case