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Databases Modifying Data with SQL Updating Data in a Database Updating Specific Rows

dvir abuksis
dvir abuksis
1,796 Points
Posted by dvir abuksis
dvir abuksis
1,796 Points

what is the difference between "IS" to "=" sign ?

I did not really understand the difference between "IS" to "=" sign. If someone can explain it to me it will be grate. Thank you.

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

Just remember "IS" is for NULL.

If you're testing values, you would use the comparison operators, including "=".

But you can't make comparisons using NULL. So you might test if a column IS NULL or IS NOT NULL.

dvir abuksis
dvir abuksis
1,796 Points
dvir abuksis
dvir abuksis
1,796 Points

Ok now i got it. Thank you.