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    <p>Looping through a resultset and executing a second query for each row is bad practice and causes unnecessary load on the database.<br> It looks like you need an <code>INNER JOIN</code>:</p> <pre class="lang-sql prettyprint-override"><code> SELECT t1.* FROM table1 t1 INNER JOIN table2 t2 ON t2.id = t1.data ORDER BY t2.field </code></pre> <p>This way, you can get all the data with <strong>one</strong> single query.</p> <hr> <p><em>EDIT:</em><br> Generally you should try to avoid returning all columns (<code>SELECT *</code>) and select only the columns that you really need:</p> <pre><code>SELECT t1.id, t2.field1, t1.field2, ... </code></pre> <p>This will not only reduce the load on the database (less data to select and to transfer over the network), but it will also help to eliminate double column names because double column names cause problems when you want to display them (as you found out yourself).</p> <p>You can do two things to avoid this problem:</p> <ol> <li><p>if both tables have columns with identical names and identical content (e.g. if these columns are used to join the tables), just select one of them (no matter which one, because they are identical).</p></li> <li><p>if both tables have columns with identical names and different content and you need both of them, the easiest way would be to give one of them an alias:</p> <pre><code>SELECT t1.id, t2.id AS AnotherId, ... </code></pre> <p>This will cause the second column to be named "AnotherId", so you can get it with <code>$rs[AnotherId]</code>.<br> Honestly, I'm no PHP guru so I don't know if PHP understands <code>$rs[table.field]</code> as well, but there are enough data access technologies which have problems when a query returns two columns with identical names...so aliasing duplicate columns can never be wrong.</p></li> </ol>
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    1. USChristian Specht
    1. USChristian Specht
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    1. COthank you. and how would i call the fields for an echo statement, i usually use $rs[field], would it be the same or would I have to do $rs[table.field] ?
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      1. USuser880356
    2. COand what does the t1 mean
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    3. COColumn names don't automatically change when they're returned in a result set, so you should be able to continue referring to them by name. Grabbing every column via SELECT * is inefficient unless your application actually requires every column in the result set, so you'd be better off specifying exactly which columns you want from t1 and t2, which will also give you the ability to rename/relabel any columns that have the same name in both tables.
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      1. USFred Sobotka
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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