What is concat ws

It separates those concatenated string values with the delimiter specified in the first function argument. The implicit conversion to strings follows the existing rules for data type conversions. See example B for more information. See example C for more information. This example concatenates three columns from the sys. This example uses a comma , as the separator value, and adds the carriage return character char 13 in the column separated values format of the result set.

See this example for more:. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Skip to main content. It helps in situations where I couldn't upgrade SQL Server to or later, and JasperReport doesn't provide a smart way to concat strings while skipping nulls.

If all the arguments are null, an empty string of type varchar 1 is returned. Lukasz Szozda Lukasz Szozda k 18 18 gold badges silver badges bronze badges. Salman A Salman A k 78 78 gold badges silver badges bronze badges.

One of the main drawbacks to this approach is if the value is an empty string and not null. For sure. I just mean in general. The most complete approach would be to wrap the value in an IIF to avoid trailing characters semi-colon in this case. So what does this do: Goal: Take the 4 search terms inputed in 4 separate filters in a report. Stefan Steiger Stefan Steiger Is this different from Andriy M's answer? Sorry, I hadn't looked at this in three years and I don't have my mind in full shape.

Unfortunately didn't scroll up, so I didn't see it. As to difference: Yes, it uses nvarchar, which is better, because it actually works with all languages Also it uses NULLIF, which means empty strings get removed not just null values.

This makes more sense, IMHO. So I'm not deleting the post. Fair enough. As about empty strings, I think the whole concept is flawed and they should have never reached high level languages we don't have empty numbers or empty dates, do we? If you have the time I'd appreciate an update. Thank you!

Jack Gajanan Jack Gajanan 1, 13 13 silver badges 17 17 bronze badges. The only issue is that when Address04 is NULL and at least of the previous ones is not you'll then get a bogus trailing separator, won't you? Yes, but we can trim it — Jack Gajanan. If the separator is concatenated at the beginning of the strings instead of the end, then there won't be an issue with trailing space. Sign up or log in Sign up using Google.

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