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What is IIF in SQL query?

What is IIF in SQL query?

SQL Server IIF() Function The IIF() function returns a value if a condition is TRUE, or another value if a condition is FALSE.

How do I use SQL IIF?

1. Syntax. syntaxsql Copy. IIF( boolean_expression, true_value, false_value )
2. Arguments. boolean_expression.
3. Return Types. Returns the data type with the highest precedence from the types in true_value and false_value.
4. Remarks. IIF is a shorthand way for writing a CASE expression.
5. Examples. A.
6. See Also. CASE (Transact-SQL)

Is null IIF SQL?

IIF is not valid syntax for SQL. Sean, that form of the CASE statement tests for equality, which won’t work when a NULL value is involved.

Can we use select statement in case in SQL?

CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as select_list, IN, WHERE, ORDER BY, and HAVING.

Can we use if else in SQL?

In MS SQL, IF…ELSE is a type of Conditional statement. Any T-SQL statement can be executed conditionally using IF… ELSE. If the condition evaluates to True, then T-SQL statements followed by IF condition in SQL server will be executed.

What is SELECT query in SQL?

SQL – SELECT Query. The SQL SELECT statement is used to fetch the data from a database table which returns this data in the form of a result table. These result tables are called result-sets.

What is select function in SQL?

called “the query”.

Examples.

Limiting result rows.

Hierarchical query.

Query evaluation ANSI.

Window function support by RDBMS vendors.

Generating data in T-SQL

References.

Sources.

External links

What is proper case in SQL?

see Previous versions documentation.

Arguments. Is the expression evaluated when the simple CASE format is used.

Return Types.

Remarks.

Examples.

Examples: Azure Synapse Analytics and Parallel Data Warehouse.

See Also

What are the syntax rules for SQL?

SQL is followed by a unique set of rules and guidelines called Syntax. This tutorial gives you a quick start with SQL by listing all the basic SQL Syntax. All the SQL statements start with any of the keywords like SELECT, INSERT, UPDATE, DELETE, ALTER, DROP, CREATE, USE, SHOW and all the statements end with a semicolon (;).