Question

What is the result of executing a statement in PDO if it contains two select queries? Consider this table:

A    B
------
a    1
b    2
c    3
d    4
e    5
f    6

and this PDO query:

$sql = $pdo->prepare("
    SELECT A FROM Table WHERE B > 3;
    SELECT A FROM Table WHERE B < 3;
");
$sql->execute();

What will $sql->fetchAll() return?

Answer 1

Combine queries using UNION ALL

Like so:

SELECT A FROM Table WHERE B > 3;     
UNION ALL
SELECT A FROM Table WHERE B < 3;

First select statement returns the records d,e,f for A.
Second statement returns a,b for A.
The result is combined into one single return

d,e,f,a,b

Now can I have my points 😉 (just kidding)