将记录插入相同MySQL模式的不同表中

Question

So I can successfully insert information into one table called "parts" using the code:

String sql1 = "INSERT INTO parts(PART1, PART2, PART3, PART4, PART5)" + "VALUES(?,?,?,?,?)";

    PreparedStatement prepareStatement = conn.prepareStatement(sql1);

    prepareStatement.setString(1,strarr.StringArray[0][0]);
    prepareStatement.setString(2,strarr.StringArray[0][1]);
    prepareStatement.setString(3,strarr.StringArray[0][2]);
    prepareStatement.setString(4,strarr.StringArray[0][3]);
    prepareStatement.setString(5,strarr.StringArray[0][4]);

    prepareStatement.execute();

However when I then try to insert some data into a different table, called subsubparts of the same schema in the exact same why it throws up an error:

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 '2.1, 2.2, 2.3, 2.4, 2.5)VALUES('$$$Epidemiology of the Disease\\r\\nLiterature sea' at line 1

and this is on the line which executes the preparedStatement.

Below is the code of the second way which fails (if this helps):

String sql2 = "INSERT INTO subsubparts(2.1, 2.2, 2.3, 2.4, 2.5)" + "VALUES(?,?,?,?,?)";
    PreparedStatement preparedStatement0 = conn.prepareStatement(sql2);

    preparedStatement0.setString(1, strarr.StringArray[2][0]);
    preparedStatement0.setString(2, strarr.StringArray[2][1]);
    preparedStatement0.setString(3, strarr.StringArray[2][2]);
    preparedStatement0.setString(4, strarr.StringArray[2][3]);
    preparedStatement0.setString(5, strarr.StringArray[2][4]);

    preparedStatement0.execute();

Whats even more confusing is that if throws a com.mysql.jdbc exception when I have imported import java.sql.SQLException .

Any help would be great please!!

Answer 1

You second query looks wrong:

INSERT INTO subsubparts(2.1, 2.2, 2.3, 2.4, 2.5) VALUES(?,?,?,?,?)

Should be changed to:

INSERT 
INTO subsubparts(FieldName1,FieldName2, FieldName3, FieldName4, FieldName5) 
VALUES(?,?,?,?,?)

Or if 2.1 is the name of the column then the name must be quoted eg "2.1"

Answer 2

If your Columns names are numbers like 2.1 then wrap it with quotes like,

String sql2 = "INSERT INTO subsubparts(`2.1`, `2.2`, `2.3`, `2.4`, `2.5`)" 
              + "VALUES(?,?,?,?,?)";

Answer 3

The major difference I see between the two queries is query two has periods in the column name. MySQL won't recognize this as-is. Instead, you need to quote each of the column names with backticks:

(`2.1`, `2.2`, `2.3`, `2.4`, `2.5`)

It may also be possible to use double-quotes. See the MySQL documentation on identifiers for more detail.