Question

I am using the following code to update my mysql table where both moving50 and moving200 are variable characters.

String sql = "update toplosers set Moving50 = ?, where Symbol = ?";  
PreparedStatement stmt = conn.prepareStatement(sql); 
for(int i1=0;i1<i;i1++)
 {   

       stmt.setString(1, moving50[i1]); 
       stmt.setString(2,symbol[i1]);


    stmt.addBatch(); 
} 
stmt.executeBatch();  
}

I am getting “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 Symbol = ‘mysymbol” at line 1
What is the problem

Answer 1

No need to add ‘comma’ for where clause.
Now check it.

String sql = "update toplosers set Moving50 = ? where Symbol = ?";  
PreparedStatement stmt = conn.prepareStatement(sql); 
for(int i1=0;i1<i;i1++)
 {   

       stmt.setString(1, moving50[i1]); 
       stmt.setString(2,symbol[i1]);


    stmt.addBatch(); 
} 
stmt.executeBatch();  
}

see sample example here