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JOIN
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Learn about SQL Joins on Multiple Columns
Learn about joining SQL Server tables together for a query when there is a need to join on multiple columns.
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Join SQL Server tables where columns include NULL values
Dealing with NULL values especially when joining tables can become a challenge. Let's take a look at this issue and how this can be resolved.
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Join Two CSV Files with a Common Column
In this example we will join two CSV files with a common column using SQL Server.
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SQL Server JOIN Hints
You, as a SQL Server data professional, are looking for ways to improve your queries. You've done the usual - avoided cursors and loops, used locks effectively, examined execution plans - what else can you tweak? Check out this tip to learn more.
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Question of the Day
Which Result II
I have this code in SQL Server 2022:
CREATE SCHEMA etl;
GO
CREATE TABLE etl.product
(
ProductID INT,
ProductName VARCHAR(100)
);
GO
INSERT etl.product
VALUES
(2, 'Bee AI Wearable');
GO
CREATE TABLE dbo.product
(
ProductID INT,
ProductName VARCHAR(100)
);
GO
INSERT dbo.product
VALUES
(1, 'Spiral College-ruled Notebook');
GO
CREATE OR ALTER PROCEDURE etl.GettheProduct
AS
BEGIN
exec('SELECT ProductName FROM product;')
END;
GO
When I execute this code as a user whose default schema is dbo and has rights to the tables and proc, what is returned? See possible answers