How do you use SQL Compare?
The COMPARE function in SQL is used to compare two expressions or values, returning one of three possible outcomes.
- If expression 1 is less than expression 2, return -1.
- Return 0 if expression 1 is equal to expression 2.
- Return 1 if expression 1 is greater than expression 2.
The method of using a comparison function is as follows:
SELECT COMPARE(expression1, expression2) AS result;
expression1 and expression2 can be any valid SQL expressions or values. The result will be returned as a new column named “result”.
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Suppose we have a table with numbers and we want to compare the values of two columns.
SELECT value1, value2, COMPARE(value1, value2) AS result
FROM numbers_table;
This will return a result set containing the original values and comparison results.