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I want to update one file to a Blob fileld in mysql table, and I tried this way
 
String sqlUpdateXSLT = "UPDATE mailer_details.auto_mailer_2 set xslt=? where auto_mailer_name='" + mailerName + "'";
            PreparedStatement stmt = con.prepareStatement(sqlUpdateXSLT);
            FileInputStream fis = new FileInputStream(mFile);
            stmt.setBlob(1, fis, (int) mFile.length());
            int ra = stmt.executeUpdate(sqlUpdateXSLT);
 
but I got an exception such as:
 
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '? where auto_mailer_name='atm4'' at line 1
 
What is problem this?
 
I performed insert operation similar way, and there were no problem.
Posted 25-Mar-13 5:03am
gavkk1.6K
Edited 25-Mar-13 5:14am
v3
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Solution 1

See http://dev.mysql.com/doc/refman/5.5/en/update.html[^], the value in your SET clause does not appear correct.
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Solution 2

int ra = stmt.executeUpdate();
 
instead
 
int ra = stmt.executeUpdate(sqlUpdateXSLT);
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v2

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