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13 lines
820 B
PHP
13 lines
820 B
PHP
<?php
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function cleanDatabase(){ // Alle Fragen die keine Antworten besitzen werden gelöscht
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$sql_1="delete from statistics where q_id in (SELECT q_id from questions where active = ".abs(intval(0))." and not exists (select 1 from answers where questions.q_id=answers.q_id))";
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$query_1 = mysql_query($sql_1) OR die(mysql_error());
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$sql_2="delete from answers_incorrect where q_id in (SELECT q_id from questions where active =".abs(intval(0))." and not exists (select 1 from answers where questions.q_id=answers.q_id))";
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$query_2 = mysql_query($sql_2) OR die(mysql_error());
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$sql_3="delete from questions where active = ".abs(intval(0))." and not exists (select 1 from answers where questions.q_id=answers.q_id)";
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$query_3 = mysql_query($sql_3) OR die(mysql_error());
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}
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?>
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