On Tue, Jun 2, 2015 at 11:08 PM, Ron Piggott <ron.piggott@xxxxxxxxxxxxxxxxxx > wrote: > > On 02/06/15 22:58, Aziz Saleh wrote: > > > > On Tue, Jun 2, 2015 at 10:50 PM, Ron Piggott < > ron.piggott@xxxxxxxxxxxxxxxxxx> wrote: > >> >> I am working through the process of removing \'s from the database. I am >> trying to get this query using a variable starting with "<<<" >> >> $query1 =<<<EOF >> UPDATE `TABLE_NAME` SET `COLUMN_NAME` = >> REPLACE(REPLACE(REPLACE(`COLUMN_NAME`,'\\\'','\''),'\\\"','"'),'\\\\','\\'); >> EOF; >> >> But when I go to execute the query I am getting the error: >> >> |#1064 - You have an error in your SQL syntax; check the manual that >> corresponds to your MariaDB server version for the right syntax to use near >> '\''),'\\"','"'),'\\','\')' at line 1 | >> >> Could someone help me know what \ and ' should be part of this query so >> it will execute correctly --- only removing \'s from the database table >> text columns? >> >> Thank you. >> >> Ron >> > > When you say remove, as replace all occurrences with an empty string, or > replace with a different character? > > I want \" to become just " > I want \' to become just ' > I also want however \ was escaped to become just \ > > (I am trying to revert the text back to what it was originally before > mysql_escape_string was applied) > > I hope this helps elaborate. > > Ron > > For simplicity sake, do each one in its own query and see which one breaks if any: $query1 =<<<EOF UPDATE `TABLE_NAME` SET `COLUMN_NAME` = REPLACE(`COLUMN_NAME`,'\"','"') EOF; $query2 =<<<EOF UPDATE `TABLE_NAME` SET `COLUMN_NAME` = REPLACE(`COLUMN_NAME`,"\'","'") EOF; $query3 =<<<EOF UPDATE `TABLE_NAME` SET `COLUMN_NAME` = REPLACE(`COLUMN_NAME`,'\\\\','\\') EOF; However, personally, I do not recommend this sort of action. Your data should be escaped in the DB. Your MySQL driver should be handling the escape/un-escape when setting/retrieving the data.
