If you have requirement to filter records where some columnName is either having value Null or have WhiteSpaces or is Empty, you can use following query: SELECT columnName FROM tableName WHERE ...

When you use IN, you’re telling SQL to take a value and compare it against every value or set of values in a list using =. If any NULL values exist, a row will not be returned–even if both ...

##Data Optimization Fewer columns make faster queries because smaller record sizes reduce the amount of time required to scan through them when performing a query. For instance, a query like the ...

The default, if no ON NULL clause is given, is ABSENT ON NULL. But I can't find in the SQL/JSON the expected result for that case, this section of the Standard doesn't describe edge cases at all. H2 ...