What is IIF condition in SQL?

What is the difference between IF and IIF in SQL?

The final argument to IIF is returned in the event of an UNKNOWN result for the comparison. If this argument is left out, Null is returned. The IF THEN ELSE function evaluates a sequence of test conditions and returns the value for the first condition that is true. If no condition is true, the ELSE value is returned.

What is IIF statement?

You use IIf to determine if another expression is true or false. … If the expression is true, IIf returns one value; if it is false, IIf returns another.

What is if condition in SQL?

IF statements can be used to conditionally enter into some logic based on the status of a condition being satisfied. The IF statement supports the use of optional ELSE IF clauses and a default ELSE clause. … An END IF clause is required to indicate the end of the statement.

Is null in IIF SQL?

We should be careful in NULL values inside the SQL IIF function. IIF(100 > 99, NULL, NULL) AS Result; We cannot specify NULL in both the true and false arguments.

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What can we use instead of case in SQL?

Question: What is Alternative to CASE Statement in SQL Server? Answer: IIF Function.

Can I use IIF in where clause?

Dont use an IIF for something in a where clause… I am sure if you think about it you can do it all in a regular where…

What is the difference between IF and IIF in tableau?

The IIF statement distinguishes TRUE, FALSE and UNKNOWN; whereas an IF statement only worries about TRUE and not true (which includes both FALSE and UNKNOWN).

Can we use if 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.

How use multiple IF condition in SQL query?

If you are checking conditions against multiple variables then you would have to go for multiple IF Statements, Each block of code will be executed independently from other blocks. ELSE IF(@ID IS NOT NULL AND @ID in (SELECT ID FROM Places)) — Outer Most Block ELSE IF BEGIN SELECT @MyName = Name … …

How do I get current date in SQL?

To get the current date and time in SQL Server, use the GETDATE() function. This function returns a datetime data type; in other words, it contains both the date and the time, e.g. 2019-08-20 10:22:34 . (Note: This function doesn’t take any arguments, so you don’t have to put anything in the brackets.)

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Is true function in SQL?

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

Is null in Informatica?

Returns whether a value is NULL. ISNULL evaluates an empty string as FALSE. To test for empty strings, use LENGTH.


Regulator system 0 (FALSE)
0 (FALSE) Empty string is not NULL