选择多个mysql列

Question

I cannot figure out how to select multiple columns and a comma separated column.

I have:

Table: example_tbl
| amount   | recurring | frequency    |
| 100      | 150       |  8,monthly   |
| 200      | 250       |  1,annually  |

The problem seems to be with the frequency and the comma. I tried:

$q = mysql_query("SELECT amount, recurring FROM example_tbl WHERE id=".$item['relid']." LIMIT 1" AND * FROM example_tbl WHERE FIND_IN_SET ('monthly', frequency));

Any help would be appreciated.

Answer 1

The problem has nothing to do with the comma, your SQL syntax is just wrong. Connect all the conditions in a single WHERE clause using AND .

$q = mysql_query("SELECT amount, recurring, frequency
                  FROM example_tbl
                  WHERE id=".$item['relid']."
                    AND FIND_IN_SET ('monthly', frequency)
                  LIMIT 1");