Sep 15, 2008 · From SQL Server 2012 you can use the IIF function for this. SELECT IIF(Obsolete = 'N' OR InStock = 'Y', 1, 0) AS Salable, * FROM Product This is effectively just a shorthand (albeit not standard SQL) way of writing CASE. I prefer the conciseness when compared with the expanded CASE version.

Jan 2, 2025 · By using IF...ELSE within SQL statements we can categorize data, apply conditional transformations, and implement business logic directly in our queries. In this article, We will explain how to use IF...ELSE in SQL with detailed syntax …

Mar 12, 2009 · APPLY calls the function once for each row from the input. Column values from the input row are available for the function to use. The function returns a table on each call, which always has the...

Select ALL columns If you want to return all columns, without specifying every column name, you can use the SELECT * syntax:

4 days ago · The SQL SELECT statement is an essential tool for retrieving and analyzing data from relational databases. Whether we’re fetching specific columns or using advanced clauses like WHERE, GROUP BY, and ORDER BY, the SELECT query …

Is there a name to describe using a SELECT statement within a WHERE clause? Is this good/bad practice? Would this be a better alternative? SELECT ScoresTable.* (SELECT Date, MAX(Score) AS MaxScore . FROM ScoresTable GROUP BY Date) SubQuery . ON ScoresTable.Date = SubQuery.Date . AND ScoresTable.Score = SubQuery.MaxScore.

Sep 17, 2024 · The SELECT statement in SQL Server is a fundamental SQL command used to query and retrieve data from one or more tables in a database. It allows us to specify the columns and rows want to retrieve, apply filtering conditions, and perform various operations on the data.

Here, the SQL command selects all columns of the Customers table. A SELECT statement can have an optional WHERE clause. The WHERE clause allows us to fetch records from a database table that matches specified condition (s). For example, FROM Customers. WHERE last_name = …

Find out how to select or retrieve data using SQL SELECT statement. You can use WHERE clause by which you can apply condition and select only the useful data from the table. In addition to this, learn how to order the retrieved data in ascending and descending orders.

May 8, 2025 · SELECT DISTINCT ON eliminates rows that match on all the specified expressions. SELECT ALL (the default) will return all candidate rows, including duplicates. (See DISTINCT Clause below.) Using the operators UNION, INTERSECT, and EXCEPT, the output of more than one SELECT statement can be combined to form a single result set.