Oracle错误ORA-01036：非法的变量名称/编号

Question

Why am I getting this error in Oracle DB?

cx_Oracle.DatabaseError: ORA-01036: illegal variable name/number

cur.execute("select jobid, jobname, technology, skillset, salary, minimumexp from job where technology=:technology or int(salary)>=:int(salary) or int(minimumexp)<=int(minimumexp)",{"technology":technology,"int(salary)":int(salary),"int(minimumexp)":int(minimumexp)})

Answer 1

I don't think that INT function is valid in this context; at least, it does nothing in Oracle. Unless I'm wrong, it converts float numbers into integers . If that's so, try with the TRUNC function instead, as Python's INT cuts off decimals.

Besides, it seems that you used the colon sign (which represents a parameter , right?) on the wrong place (should be in front of the parameter name, not the INT (or TRUNC ) function).

For example:

No : or int(salary)   >= :int(salary)
Yes: or trunc(salary) >= trunc(:salary)