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15 wrz 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.
28 maj 2024 · SELECT column1, column2, CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE result_default END AS alias_name FROM table_name; Here, we use a SELECT and FROM query to select multiple columns from a table and use a CASE statement to evaluate conditions.
31 maj 2023 · SELECT * FROM mytable WHERE column1 LIKE '%word1%' OR column1 LIKE '%word2%' OR column1 LIKE '%word3%'. If you need all words to be present, use this: SELECT * FROM mytable WHERE column1 LIKE '%word1%' AND column1 LIKE '%word2%' AND column1 LIKE '%word3%'.
12 maj 2024 · In this tutorial, we’ll look at querying rows that contain given words or phrases in SQL. We tested our examples on MS SQL Server 2022, PostgreSQL 14, and MySQL 8 databases . However, most methods we discuss should be available in other versions of these SQL implementations and other SQL dialects.
30 paź 2023 · We will guide you through five effective methods such as the CASE statement, IIF function, WHERE clause with OR/AND, CHOOSE function, and COALESCE function. These methods are like different paths to reach the same destination - making your SQL queries smart and responsive to conditions.
2 cze 2023 · The syntax of the SQL CASE expression is: CASE [expression] WHEN condition_1 THEN result_1 WHEN condition_2 THEN result_2 ... WHEN condition_n THEN result_n ELSE result END case_name. The CASE statement can be written in a few ways, so let’s take a look at these parameters. Parameters of the CASE Statement.
4 sie 2024 · SELECT column1, column2, FROM table_name WHERE condition; In this query, we use a logical expression condition that evaluates to TRUE , FALSE , or UNKNOWN . Now, let’s explore several methods that can incorporate IF statements within SQL WHERE clauses.
