Question : I’m seeing a lot of where NULL IS NULL type conditions in code and I’m curious about the […]
Tag: isnull
Difference in efficiency between NVL and IS NULL
Question : I have the below query (showing the last part of the query). In the first example I get […]
Displaying null fields as 0 in mySQL select [duplicate]
Question : This question already has an answer here: Find which date is missing in the results (1 answer) Closed […]
How can I replace the following query with ISNULL function in SQL?
Question : I have the following query. For performance optimization reasons I have been asked to replace the logic with […]
Avoiding null comparisons in where clause
Question : It’s my impression that comparing to null limits the use of an index. We had a DBA come […]
Try_Convert Datetime showing ‘1/1/1900’, want to show space
Question : How do I get try_convert datetime to display NULL when the input is space? I am getting two […]
Select IDS where all values can’t be found in another table
Question : Hey I’m pretty new to SQL and I’ve come up with a problem that I haven’t been able […]
Improve this statement using ISNULL
Question : Beginner with SQL and trying to improve this using ISNULL instead of the longer statement? CASE WHEN c.FirstName […]
Select IDS where all values can’t be found in another table
Question : Hey I’m pretty new to SQL and I’ve come up with a problem that I haven’t been able […]