java.sql.SQLSyntaxErrorException：ORA-00911：无效字符

Question

I have the following java code for inserting values to the database

When i try the code below it works

st.executeUpdate("INSERT INTO USERT " +  "VALUES ('1', 'Simpson', 'Mr', 'Springfield', '2001')");

But when i try the code below i get an error

java.sql.SQLSyntaxErrorException: ORA-00911: invalid character

st.executeUpdate("INSERT INTO USERT (`USERID`, `FIRSTNAME`,`LASTNAME`,`EMAIL`,`PHONE`) VALUES ('2', 'james', 'john', 'myemail', 'myphone')");

Most of the answers provided here at stack overflow refer to a character misplacement of a semicolon ; . ie link 1 , link 2 , link 3 which does not seem to help me

Here is the full code of my class

package dbproject;

import java.sql.*;

public class jdbcconnection {

    public static void main(String[] args) {
        try{

        Class.forName("oracle.jdbc.driver.OracleDriver");
        java.sql.Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","data1","mypass");
        Statement st=con.createStatement();

        st.executeUpdate("INSERT INTO USERT (`USERID`, `FIRSTNAME`,`LASTNAME`,`EMAIL`,`PHONE`) VALUES ('2', 'james', 'john', 'myemail', 'myphone')");

        //st.executeUpdate("INSERT INTO USERT " +  "VALUES ('1', 'Simpson', 'Mr', 'Springfield', '2001')");

        con.close();

        }
        catch(Exception e){

                System.out.println(e);

        }
    }
}

What could be wrong with my execute query and what else could lead to the error?

Answer 1

MySQL and Oracle have some minor differences in their definition of an identifier. In MySQL, an unquoted identifier may begin with a digit, and double quotation marks are allowed in a quoted identifier; however, neither of these is allowed in an Oracle identifier. In MySQL, the quote character is the backtick (`). If the SQL mode ANSI_QUOTES is set, double quotes can also be used to quote the identifiers. In Oracle, identifiers are quoted using double quotation marks.

https://docs.oracle.com/cd/E12151_01/doc.150/e12155/oracle_mysql_compared.htm#i1026354

try;

   st.executeUpdate("INSERT INTO USERT (USERID, FIRSTNAME,LASTNAME,EMAIL,PHONE) VALUES ('2', 'james', 'john', 'myemail', 'myphone')");