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How do I check if a Sql server string is null or empty

... I think this: SELECT ISNULL(NULLIF(listing.Offer_Text, ''), company.Offer_Text) AS Offer_Text FROM ... is the most elegant solution. And to break it down a bit in pseudo code: // a) NULLIF: if (listing.Offer_Text == '') temp := nu...
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Is there a way to select sibling nodes?

For some performance reasons, I am trying to find a way to select only sibling nodes of the selected node. 13 Answers ...
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Is SQL syntax case sensitive?

... The SQL Keywords are case-insensitive (SELECT, FROM, WHERE, etc), but are often written in all caps. However in some setups table and column names are case-sensitive. MySQL has a configuration option to enable/disable it. Usually case-sensitive table and column na...
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jquery data selector

I need to select elements based on values stored in an element's .data() object. At a minimum, I'd like to select top-level data properties using selectors, perhaps like this: ...
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%Like% Query in spring JpaRepository

...hars as well as a space char following like in your query, as in @Query("Select c from Registration c where c.place like %:place%"). Cf. http://docs.spring.io/spring-data/jpa/docs/current/reference/html. You may want to get rid of the @Queryannotation alltogether, as it seems to resemble the st...
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How to change max_allowed_packet size

...ices.msc, Enter You could find an entry like 'MySQL56', right click on it, select properties You could see sth like "D:/Program Files/MySQL/MySQL Server 5.6/bin\mysqld" --defaults-file="D:\ProgramData\MySQL\MySQL Server 5.6\my.ini" MySQL56 I got this answer from http://bugs.mysql.com/bug.php?id=68...
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Xcode 6 Storyboard the wrong size?

...way at some point." You probably haven't added the layout constraints. Select your label, tap the layout constraints button on the bottom: On that menu add width and height (it should NOT be the same as mine) by checking their checkbox and click add constraints. Then Control-drag your label t...
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Set cache-control for entire S3 bucket automatically (using bucket policies?)

...it can take some time. Log in to AWS Management Console Go into S3 bucket Select all files by route Choose "More" from the menu Select "Change metadata" In the "Key" field, select "Cache-Control" from the drop down menu max-age=604800Enter (7 days) for Value Press "Save" button (thanks to @biplob ...
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How can I insert values into a table, using a subquery with more than one result?

... You want: insert into prices (group, id, price) select 7, articleId, 1.50 from article where name like 'ABC%'; where you just hardcode the constant fields. share | ...
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How to find all tables that have foreign keys that reference particular table.column and have values

... Here you go: USE information_schema; SELECT * FROM KEY_COLUMN_USAGE WHERE REFERENCED_TABLE_NAME = 'X' AND REFERENCED_COLUMN_NAME = 'X_id'; If you have multiple databases with similar tables/column names you may also wish to limit your query to a particul...