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Author Question: Analyze the following code: ResultSet resultSet = statement.executeQuery("select firstName, mi, ... (Read 70 times)

justinmsk

  • Hero Member
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  • Posts: 524
on: May 6, 2020

Question 1

Which of the following statements are true?
◦ You may create multiple statements from one connection.
◦ You can send queries and update statements through a Statement object.
◦ You may create multiple connections to a database.
◦ You may load multiple JDBC drivers in a program.

Question 2

Analyze the following code:

ResultSet resultSet = statement.executeQuery
​("select firstName, mi, lastName from Student where lastName "
​+ " = 'Smith'");
System.out.println(resultSet.getString(1));

◦ If the SQL SELECT statement returns no result, resultSet is null.
◦ resultSet.getString(1) returns the firstName field in the result set.
◦ resultSet.getString(1) returns the mi field in the result set.
◦ The program will have a runtime error, because the cursor in resultSet does not point to a row. You must use resultSet.next() to move the cursor to the first row in the result set. Subsequently, resultSet.next() moves the cursor to the next row in the result set.
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Marked as best answer by justinmsk on May 6, 2020

momtoalll

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Reply #1 on: May 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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justinmsk

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Reply 2 on: May 6, 2020
Thanks for the timely response, appreciate it

diana chang

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Reply 3 on: Yesterday
Excellent

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