exists Archives - IT Nursery

I’ve got two postgresql tables: table name column names ----------- ------------------------ login_log ip | etc. ip_location ip | location | hostname | etc. ...

May 27, 2022
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MySQL > Table doesn’t exist. But it does (or it should)

I changed the datadir of a MySQL installation and all the bases moved correctly except for one. I can connect and USE the ...

May 18, 2022
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INSERT IF NOT EXISTS ELSE UPDATE?

I’ve found a few “would be” solutions for the classic “How do I insert a new record or update one if it already ...

May 15, 2022
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Check if a div exists with jquery [duplicate]

This question already has answers here: Is there an “exists” function for jQuery? (46 answers) Closed 2 years ago. Yes, I know this ...

May 14, 2022
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How to check if mysql database exists

Is it possible to check if a (MySQL) database exists after having made a connection. I know how to check if a table ...

May 13, 2022
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Best way to test if a row exists in a MySQL table

I’m trying to find out if a row exists in a table. Using MySQL, is it better to do a query like this: ...

May 9, 2022
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Difference between EXISTS and IN in SQL?

What is the difference between the EXISTS and IN clause in SQL? When should we use EXISTS, and when should we use IN? ...

May 4, 2022
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Check if multiple strings exist in another string

How can I check if any of the strings in an array exists in another string? Like: a =...

May 2, 2022
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