Linq select objects in list where exists IN (A,B,C)
I have a list of orders. I want to select orders based on a set of order statuses. So essentially select orders where … Read more
exists
Only one expression can be specified in the select list when the subquery is not introduced with EXISTS
My query is as follows, and contains a subquery within it: select count(distinct dNum) from myDB.dbo.AQ where A_ID in (SELECT DISTINCT TOP (0.1) … Read more
Select rows which are not present in other table
I’ve got two postgresql tables: table name column names ———– ———————— login_log ip | etc. ip_location ip | location | hostname | etc. … Read more
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 … Read more
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 … Read more
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 … Read more
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 … Read more
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: … Read more
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? … Read more
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 = [‘a’, ‘b’, ‘c’] str … Read more