I have a table in postgres with a value column that contains string arrays. My objective is to find all arrays that contain any of the following strings: {‘cat’, ‘dog’} The following query uses ANY() to check if ‘dog’ is equal to any of the items in each array and will correctly return rows 1 and 3: I am trying
Tag: operators
Test ARRAY whether it contains ALL or NO elements of given ARRAY
Suppose we have an array: With the operator <@ I can query whether the left-operand is a sub-array of the right-operand: The above works greatly but now let’s take the following case: In this case the above will return false as expected. Do we have an operator which says the following: either the left array is contained by the right
Invalid syntax error near ‘<' when using case when variable, works fine without variable
I am trying to resolve this SQL issue where my code throws an error Invalid syntax error near ‘<‘ when I use the variable @totalprice. Without using the variable, the CASE works and the query executes correctly but I want it as a variable Thanks Answer If you want to assign the result of the CASE expression to your variable
What is this operator in MySQL?
I’m working on code written by a previous developer and in a query it says, What does <=> mean in this query? Is it something equal to =? Or is it a syntax error? But it is not showing any errors or exceptions. I already know that <> = != in MySQL. Answer TL;DR It’s the NULL safe equal operator.
MySQL “IN” operator performance on (large?) number of values
I have been experimenting with Redis and MongoDB lately and it would seem that there are often cases where you would store an array of id’s in either MongoDB or Redis. I’ll stick with Redis for this question since I am asking about the MySQL IN operator. I was wondering how performant it is to list a large number (300-3000)