The STRCMP function in SQL is used to compare two strings and determine their lexical (alphabetical) order. It is commonly supported in MySQL, but not available in SQL Server or PostgreSQL under the same name.

? Syntax (MySQL)

STRCMP(string1, string2)

• Compares string1 to string2 case-sensitive.

• Returns an integer value indicating the comparison result.

? Return Values

? Example Queries (MySQL)

SELECT STRCMP('apple', 'apple');  -- Returns 0SELECT STRCMP('banana', 'apple');-- Returns 1SELECT STRCMP('apple', 'banana');-- Returns -1

?? Case Sensitivity

• STRCMP is case-sensitive:

  SELECT STRCMP('Apple', 'apple');  -- Returns -1

? If You're Using SQL Server or PostgreSQL

They don’t have STRCMP, but you can achieve the same with CASE and comparison operators:

SQL Server / PostgreSQL Equivalent:

SELECT   CASE     WHEN 'apple' = 'banana' THEN 0    WHEN 'apple' > 'banana' THEN 1    ELSE -1  END AS CompareResult;

Let me know your SQL dialect (MySQL, SQL Server, etc.), and I can tailor string comparison logic accordingly!