- Trending Categories
- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to use prepared statement for select query in Java with MySQL?
You need to use executeQuery() for this. The syntax is as follows −
yourPreparedStatementObject=yourConnectionObject.prepareStatement(yourQueryName); yourresultSetObject=yourPreparedStatementObject.executeQuery();
Create a table in the database ‘sample’. The query to create a table is as follows −
mysql> create table JavaPreparedStatement -> ( -> Id int, -> Name varchar(10), -> Age int -> ); Query OK, 0 rows affected (0.89 sec)
Insert some records in the table using insert command. The query is as follows −
mysql> insert into JavaPreparedStatement values(1,'Larry',23); Query OK, 1 row affected (0.16 sec) mysql> insert into JavaPreparedStatement values(2,'Sam',25); Query OK, 1 row affected (0.21 sec) mysql> insert into JavaPreparedStatement values(3,'Mike',26); Query OK, 1 row affected (0.12 sec)
Now you can display all records of the table using Java PreparedStatement. You need to use the executeQuery() method.
Here is the Java code −
import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; public class PreparedStatementSelectQueryDemo { public static void main(String[] args) { String JdbcURL = "jdbc:mysql://localhost:3306/sample?useSSL=false"; String Username = "root"; String password = "123456"; Connection con = null; PreparedStatement pstmt = null; ResultSet rst = null; String myQuery = "select Id,Name,Age from JavaPreparedStatement"; try { con = DriverManager.getConnection(JdbcURL, Username, password); pstmt = con.prepareStatement(myQuery); rst = pstmt.executeQuery(); System.out.println("Id\t\tName\t\tAge
"); while(rst.next()) { System.out.print(rst.getInt(1)); System.out.print("\t\t"+rst.getString(2)); System.out.print("\t\t"+rst.getInt(3)); System.out.println(); } } catch(Exception exec) { exec.printStackTrace(); } } }
Here is the snapshot of Java code −
Here is the snapshot of sample output −
Advertisements