Search results
21 sie 2010 · There is a DateTime field that I have to include in my INSERT statement. This field is NOT defined as "Required" in Access, meaning that it is indeed NULL-able, and in fact some of the rows in the Access database are already NULL. The problem I'm having is simple: How to insert NULL through SQL?
10 lis 2012 · SELECT LightDuty.FDID, LightDuty.[First Name], LightDuty.[Last Name], LightDuty.Unit, LightDuty.[Permanent Assignment], LightDuty.[Drs Excuse Exp], LightDuty.[Email Address], LightDuty.[Email Sent Date] FROM LightDuty WHERE (((LightDuty.[Email Sent Date])=IsNull([Email Sent Date])) AND ((DateDiff('d',Date(),[Drs Excuse Exp]))=14));
17 mar 2022 · If DateOfIssue is Null then use DateOfExpectedIssue. if DateOfIssue is Not Null then use DateOfIssue. I have tried to modify but not sure if the following logic is correct: Nz ( [DateOfIssue],0) since not sure if a date can have a 0 value.
It would help if you provided the entire SQL statement. You should be able to use "OR Is Null" in your WHERE CLAUSE. Generically this might look like: SELECT * FROM tblYourTableName. WHERE Account_Number = Forms!YourForm!txtAcctNum . AND (Course_Date = Forms!YourForm!txtCourseDate OR Course_Date Is Null);
6 sty 2021 · First, you can use String.IsNullOrEmpty(String) method to check if Field3 or Field4 is null. Then you can use the conditional operator ?: instead of if else statement. If it is null you can pass string.Empty into datatable. Otherwise, you can pass Field3 and Field4's value. You can enter DateTime picker value into database via dateTimePicker1 ...
12 paź 2006 · use Is Null and Not Is Null, respectively, in criteria expressions and SQL WHERE clauses. For instance, to find null values in a query, you’d enter Is Null in the appropriate field’s Criteria...
11 lut 2020 · In SQL Server we can use IsNull() function to check whether expression value is null or not. For ex. Select IsNull(sum(amount),0) as TotalAmount From Payments
