isnumeric

T-sql - determine if value is integer

由 徘徊边缘 提交于 2019-12-17 07:41:31
问题 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 回答1: Here's a blog post describing the creation of an IsInteger UDF. Basically, it recommends

How can you tell if a value is not numeric in Oracle?

由 ぐ巨炮叔叔 提交于 2019-12-17 06:46:28
问题 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 ... 回答1: REGEXP

$_POST Number and Character checker

由 折月煮酒 提交于 2019-12-12 05:32:21
问题 This is a repeat question of Check $_POST['id'] is numeric then do this if not do otherwise But.. The answers given do not answer the question IMHO. The question is testing a $_POST string to see if it is a number or contains non-numeric characters. Not change the code to use $_GET. The original question is as such: if (!empty($_POST['id'])) { echo "empty"; } else { if (is_numeric($_POST['id'])) { echo "numeric!"; } else { echo "not empty but not numeric how come?"; } } I have tried, is

IsNumeric in SQL Server JOIN

由 ぃ、小莉子 提交于 2019-12-10 20:48:54
问题 My problem seems to be very simple but I'm stuck here. I have a table which has an "nvarchar" column called "SrcID" and I store both numbers and strings in that. Now, when I try to check for "IsNumeric" on that column in a "Join" condition, something like below, ISNUMERIC(SrcID) = 1 AND SrcID > 15 I am getting the following error: Msg 245, Level 16, State 1, Line 47 Conversion failed when converting the nvarchar value 'Test' to data type int. Amazingly, when I remove the check "SrcID > 15",

T-Sql ISNUMERIC('45D-1') returns 1

由 谁都会走 提交于 2019-12-10 17:24:45
问题 I have a T-Sql statement that is getting the next available number from a table. but the column is of type nvarchar. It dost have to be a number, But i still need to be able to get the next available number so when i run the sql i try to only get numbers WHERE ISNUMERIC(myCol) AND CAST(REPLACE(myCol, N'0', N'') AS int) but i get error Conversion failed when converting the nvarchar value '45D-1' to data type int. So i ran just select ISNUMERIC('45D-1') And to my surprise its true I already

How to check isNumeric/IsNumber in JSTL

由 梦想与她 提交于 2019-12-09 18:16:49
问题 how to do this simple check in JSTL(without extending any java classes and additional JSP functions). I need it like this: <c:if test="${fn:isNumeric()}"> ... do something ... </c:if> Thanks in advance. 回答1: If your environment supports the new EL 2.2 feature of invoking non-getter methods on EL objects (which is available in all Servlet 3.0 compatible containers, such as Tomcat 7, Glassfish 3, etc), then you could just use the String#matches() method directly in EL. <c:set var=

Best way to check if value is integer ? Coldfusion 9

由 折月煮酒 提交于 2019-12-08 03:20:46
问题 I have fields to test and make sure they only accept integers . There is few functions but I wasn't sure which one is the best. First I tried isValid("integer",value) but I have discovered that "1,5" will be accepted as an integer. So then I tried isNumeric(value) but this will accept values like 1.5 . I'm wondering what should be the best way to check for integers? Maybe two combine these two functions like: <cfif isValid("integer",value) AND isNumeric(value)> Or there is better way to do

VB6 Can IsNumeric be wrong?

由 放肆的年华 提交于 2019-12-07 05:32:07
问题 Is it possible to test a string with IsNumeric() and for it to return true, but when you cast that same string to an integer using CInt() and assign it to a variable of type integer that it will give a type mismatch error? I ask because I was getting a type mismatch error, so I used IsNumeric() to check the string was numeric before trying to cast it, but I still get the error. I am tearing my hair out with this. Here is the code in question. iGlobalMaxAlternatives = CInt(strMaxAlternatives)

Best way to check if value is integer ? Coldfusion 9

由 旧街凉风 提交于 2019-12-06 07:28:27
I have fields to test and make sure they only accept integers . There is few functions but I wasn't sure which one is the best. First I tried isValid("integer",value) but I have discovered that "1,5" will be accepted as an integer. So then I tried isNumeric(value) but this will accept values like 1.5 . I'm wondering what should be the best way to check for integers? Maybe two combine these two functions like: <cfif isValid("integer",value) AND isNumeric(value)> Or there is better way to do this? You could try this: value = replace(value, ',', '', 'all'); numberIsInteger = isNumeric(value) &&

VB6 Can IsNumeric be wrong?

由 爷，独闯天下 提交于 2019-12-05 10:37:29
Is it possible to test a string with IsNumeric() and for it to return true, but when you cast that same string to an integer using CInt() and assign it to a variable of type integer that it will give a type mismatch error? I ask because I was getting a type mismatch error, so I used IsNumeric() to check the string was numeric before trying to cast it, but I still get the error. I am tearing my hair out with this. Here is the code in question. iGlobalMaxAlternatives = CInt(strMaxAlternatives) is where the error is occuring. Dim strMaxAlternatives As String Dim iGlobalMaxAlternatives As Integer
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