Hi everybody, I want to compare 2 tables contents. My tables are:
Table1 ------------------ ID || Value ------------------ 1 || forum_list1 2 || Message_list1 3 || Search1 4 || Search5 5 || Search11 6 || Log_out 7 || LOG
Table2 -------------------------------------------- ID || Value1 || Value2 --------------------------------------------- 1 || rd_forum_list1_no || 2 || wr_Message_list1_yes || 3 || rd_Search1_no || 4 || rd_Search5_no || 5 || rd_Search11_no || 6 || rd_Log_out_no || 7 || rd_LOG_no || 8 || wr_forum_list1_no || 9 || rd_Message_list1_yes || 10 || 123_Search1_456 || 11 || 123_Search11_456 ||
I want to compare both the tables content and if the contents are similar then place the ID of table no. one in Table2.Value2 but discard all the rows with "wr_". Also note that in case of Search1 and Search11, I want the comaprison very exact as
Table2 -------------------------------------------- ID || Value1 || Value2 --------------------------------------------- 1 || rd_forum_list1_no || 1 2 || wr_Message_list1_yes || 3 || rd_Search1_no || 3 4 || rd_Search5_no || 4 5 || rd_Search11_no || 5 6 || rd_Log_out_no || 6 7 || rd_LOG_no || 7 8 || wr_forum_list1_no || 9 || rd_Message_list1_yes || 2 10 || 123_Search1_456 || 3 11 || 123_Search11_456 || 5
I tried implementing this by following code:
$query = "SELECT Table1.value, Table2.value1 FROM Table1,Table2 WHERE +Table2.value1 LIKE CONCAT('%',Table1.value,'%')"; $result =mysql_query($query) or die(mysql_error()); while(@row = mysql_ftech_array($result)) { $updatetable2= UPDATE Table2.value2 SET Table2.value2 =(@Table1.value) +; }
Seems it works fine till $result but show error for updatetable2. It shows an error for @Table1.value. \n But its not working.. please help.. thanks in advance

In reply to Perl and Mysql compare 2 tables by Marklitz

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