Using Union or run query twice
120506
Performance/efficiency of 2 SELECT statements vs UNION vs anything else in MySQL-PHP
126514
Does anyone use Right Outer Joins?
69613
How do I add a condition to a query?
40249
How to use mysql JOIN without ON condition?
93814
MS SQL Server: Do multiple queries in a batch ever execute in parallel and if so what happens when the second query is dependent on the first?
146960
How to multiple query results in order to reduce the query number?
83368
How to combine two QUERY results into one column
66300
is there a shorter way to set up queries when filtering results?
60903
Injection of union into disjoint union
106227
Using column alias in WHERE clause of MySQL query produces an error
93731
Using Union All and Order By in MySQL
117531
Best practice between using LEFT JOIN or NOT EXISTS
46174
Using an Alias in a WHERE clause
25528
Why can't I run two mysqli queries? The second one fails
133334
SQL Use alias in Where statement
146592
Is there a faster way to get UNION ALL behavior in Postgres?
88933
mysqli: can it prepare multiple queries in one statement?