I’m painfully new to SQL/mySQL as a whole so I’m flying blind right now so apologies.
I made a procedure in mySQL that selects a varchar data from a specific column and table, turn it into INT (contents of said column are numerical to begin with) and output its values after going through a mathematical operation as a (very simple) attempt in data masking. As follows:
CREATE PROCEDURE qdwh.mask_varchar_num2(tablename varchar(100), colname varchar (100))
BEGIN
set @a=concat('select','(','(','(','(','select',colname ,'from',tablename,')','+','0',')','+','297',')','*','5',')','as','colname');
prepare query from @a;
execute query;
deallocate prepare query;
END
but when i tried to call the procedure with the following line:
select [column] , mask_varchar_num2 ([column]) from [table];
an error "FUNCTION qdwh.mask_varchar_num2 does not exist" shows up. I wanted the script to output a select function of the column in question after the conversion to INT and the mathematical operation done to it, so i can then use this procedure in a larger script ("create table select as" kinda stuff) to convert the whole table into masked data as needed.
Is there something i am missing and what am i doing wrong? Dbeaver acknowledges the procedure script as legit so i dont know whats wrong. Thanks in advance for the advice.
2
Answers
Procedures are run by using
call
and cannot be called within a select query. To define a function, you need to usecreate function
.not an answer but here’s what your select looks like..
missing a lot of spaces between tokens