Checking the negative value
Hey guys I have a result on the ground which is of type varchar, but it stores numbers. I want to check if the value is negative or not. The code below works perfectly except for 1 case where the result has only ' - '. -indicates a missing value not a negative... How this can be fixed. Here is my code snippet.-Search for numeric values
IF (trim (TRANSLATE (resvalue,'+ -. 0123456789', ' ')) IS NULL) THEN
-Look for the negative value if the value is numeric
IF (substr (resvalue, 1, 1) = '-' AND substr (resvalue, 0, 1) is not null) THEN
v_ret_msg: = v_result_name | "" A negative result. "
Also check the LENGTH of resvalue.
That is to say:
If length (resvalue) = 1 and substr (resvalue, 1, 1) = '-' then...
Tags: Database
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