MySQL IF() Function
Example
Return "YES" if the condition is TRUE, or "NO" if the condition is FALSE:
  SELECT 
  IF(500<1000, "YES", "NO");
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Definition and Usage
The IF() function returns a value if a condition is TRUE, or another value if a condition is FALSE.
Syntax
  IF(condition, value_if_true, value_if_false)
Parameter Values
| Parameter | Description | 
|---|---|
| condition | Required. The value to test | 
| value_if_true | Required. The value to return if condition is TRUE | 
| value_if_false | Required. The value to return if condition is FALSE | 
Technical Details
| Works in: | From MySQL 4.0 | 
|---|
More Examples
Example
Return 5 if the condition is TRUE, or 10 if the condition is FALSE:
  SELECT IF(500<1000, 5, 10);
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Example
Test whether two strings are the same and return "YES" if they are, or "NO" if not:
  SELECT IF(STRCMP("hello","bye") = 0, "YES", "NO");
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Example
Return "MORE" if the condition is TRUE, or "LESS" if the condition is FALSE:
  SELECT OrderID, Quantity, IF(Quantity>10, "MORE", "LESS")
FROM 
  OrderDetails;
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