isnumeric

SQL is detecting that the following string ISNUMERIC : '07213E71' I believe this is because the 'E' is being classed as a mathmatical symbol. However, I need to ensure that only values which are whole integers are returned as True. How can I do this? 07213E71 is a floating number 7213 with 71 zeros You can use this ISNUMERIC(myValue + '.0e0') to test for whole integers. Slightly cryptic but works. Another test is the double negative myValue NOT LIKE '%[^0-9]%' which allows only digits 0 to 9. ISNUMERIC has other issues in that these all return 1: + , - , To nitpick: This is a whole integer. It

This isn't a big issue for me (as far as I'm aware), it's more of something that's interested me. But what is the main difference, if any, of using is_numeric over preg_match (or vice versa) to validate user input values. Example One: <?php $id = $_GET['id']; if (!preg_match('/^[0-9]*$/', $id)) { // Error } else { // Continue } ?> Example Two: <?php $id = $_GET['id']; if (!is_numeric($id)) { // Error } else { // Continue } ?> I assume both do exactly the same but is there any specific differences which could cause problems later somehow? Is there a "best way" or something I'm not seeing which

I have the following code that returns an error message if my value is invalid. I would like to give the same error message if the value given is not numeric. IF(option_id = 0021) THEN IF((value<10000) or (value>7200000) or /* Numeric Check */)THEN ip_msg(6214,option_name); -- Error Message return; END IF; END IF; In SQL Server, I simply used ISNUMERIC() . I would like to do something similar in Oracle. Such as, IF((!ISNUMERIC(value)) or (value<10000) or (value>7200000)) THEN ... REGEXP_LIKE(column, '^[[:digit:]]+$') returns TRUE if column holds only numeric characters There is no built-in

I want to determine if a value is integer (like TryParse in .NET). Unfortunatelly ISNUMERIC does not fit me because I want to parse only integers and not every kind of number. Is there such thing as ISINT or something? Here is some code to make things clear. If MY_FIELD is not int, this code would fail: SELECT @MY_VAR = CAST(MY_FIELD AS INT) FROM MY_TABLE WHERE MY_OTHER_FIELD = 'MY_FILTER' Thank you Here's a blog post describing the creation of an IsInteger UDF. Basically, it recommends adding '.e0' to the value and using IsNumeric . In this way, anything that already had a decimal point now

So I just spent 5 hours troubleshooting a problem which turned out to be due not only to the old unreliable ISNUMERIC but it looks like my problem only appears when the UDF in which ISNUMERIC is declared WITH SCHEMABINDING and is called within a stored proc (I've got a lot of work to do to distill it down into a test case, but my first need is to replace it with something reliable). Any recommendations on good, efficient replacements for ISNUMERIC() . Obviously there really need to be variations for int , money , etc., but what are people using (preferably in T-SQL, because on this project, I