I am asking because a rows has got fields. Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Martin Smith Martin Smith k 81 81 gold badges silver badges bronze badges. RThomas RThomas Apparantly someone else was thinking along the same lines. Not a very useful action, and as you point out, makes a lot of assumptions about the nature of the columns. But you are free to make any modifications to accommodate string fields or a subset of columns etc, as again, it's just a sample snippet of what could be done.
You can visualize it with the following screenshot. We use it to replace NULL values with a specific value. In the second part, we can see the employee having a NULL salary. If we have multiple data types in an expression, SQL Server converts the lower precedence data types into a higher precedence data type. In the following image, we can all possible implicit and explicit allowed data type conversions.
Image Reference: Microsoft Docs. Viewed 3k times. What am I doing wrong here? Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Diego Diego Your join is probably filtering out rows. Run those commands in a sample dataset and you will see that they do not do the same thing. Lucas Lucas 9 1 1 bronze badge. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.
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