MySQL server version for the right syntax to use near?

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Hi,

when i am executing my code,i code the error

Quote:
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 'null,'What 's the first day of the week ?','Date')' at line 1

and my code is:-

SQL

String sql= "INSERT INTO assign_table"+"VALUES(null,'"+question+"','"+node+"')";

why is it so?

Posted 2-Feb-15 23:47pm

jeenatmathew

Updated 2-Feb-15 23:53pm

CHill60

v2

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Richard MacCutchan 3-Feb-15 5:56am

What is the result of all those string concatenations? Obviously not a valid piece of MySQL. And you really should not build SQL statements in that way, you should use proper parameterised queries.

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Peter Leow · Accepted Answer · 2015-02-03T01:13:00

It would have saved you a lot of trouble by using prepared statement, e.g

String sql = " insert into assign_table values (?, ?, ?)";
// create the mysql insert preparedstatement
PreparedStatement preparedStmt = conn.prepareStatement(sql);
preparedStmt.setString (1, null);
preparedStmt.setString (2, question);
preparedStmt.setString (3, node);

Read more A Java MySQL INSERT example (using PreparedStatement)[^]
I just noticed that your second parameter

'What 's the first day of the week ?'

contains a single quote, it has to be escaped, like this

'What \'s the first day of the week ?'

Read more: http://dev.mysql.com/doc/refman/4.1/en/string-literals.html[^]

CHill60 · Accepted Answer · 2015-02-02T23:56:00

Solution 1

If you examine the contents of the String sql you will see that there is no space between assign_table and VALUES. There is also no need for that plus symbol. Try

Java

String sql= "INSERT INTO assign_table VALUES(null,'"+question+"','"+node+"')";

Posted 2-Feb-15 23:56pm

CHill60

Comments

jeenatmathew 3-Feb-15 6:07am

Still it is showing error

CHill60 3-Feb-15 6:13am

try NULL instead - I can't remember if MySQL is case-sensitive (just going to try to find out as well)

CHill60 3-Feb-15 6:14am

... that first column *is* nullable isn't it?