Question

I have a table with two fields (id and word).
Can anyone enlighten me as to why:

$query0 = "SELECT * FROM words WHERE id IN ($treated_words) ";

is a valid query. But:

$query0 = "SELECT * FROM words ORDER BY id ASC WHERE id IN ($treated_words) ";

is not. Many thanks

Answer 1

Order of elements in a SQL query matters. The ORDER BY clause must appear after the WHERE clause.

Look to the MySql docs for syntax rules. You’ll see something like

SELECT [ DISTINCT | ALL ]
  column_expression1, column_expression2, ....
  [ FROM from_clause ]
  [ WHERE where_expression ]
  [ GROUP BY expression1, expression2, .... ]
  [ HAVING having_expression ]
  [ ORDER BY order_column_expr1, order_column_expr2, .... ]