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import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.Statement;
public class Main {
public static void main(String[] args) throws Exception {
Connection conn = getConnection();
conn.setAutoCommit(false);
Statement st = conn .createStatement();
st.executeUpdate("create table survey (id int, name VARCHAR(30) );");
st.addBatch("DELETE FROM survey");
st.addBatch("INSERT INTO survey(id, name) "+
"VALUES(444, 'ginger')");
// we intentionally pass a table name (animals_tableZZ)
// that does not exist
st.addBatch("INSERT INTO survey(id, name) "+
"VALUES(555, 'lola')");
st.addBatch("INSERT INTO survey(id, name) "+
"VALUES(666, 'freddy')");
// Execute the batch
int[] updateCounts = st.executeBatch();
checkUpdateCounts(updateCounts);
// since there were no errors, commit
conn.commit();
ResultSet rs = st.executeQuery("SELECT * FROM survey");
outputResultSet(rs);
rs.close();
st.close();
conn.close();
}
public static void checkUpdateCounts(int[] updateCounts) {
for (int i=0; i<updateCounts.length; i++) {
if (updateCounts[i] >= 0) {
System.out.println("OK; updateCount="+updateCounts[i]);
}
else if (updateCounts[i] == Statement.SUCCESS_NO_INFO) {
System.out.println("OK; updateCount=Statement.SUCCESS_NO_INFO");
}
else if (updateCounts[i] == Statement.EXECUTE_FAILED) {
System.out.println("Failure; updateCount=Statement.EXECUTE_FAILED");
}
}
}
private static void outputResultSet(ResultSet rs) throws Exception {
ResultSetMetaData rsMetaData = rs.getMetaData();
int numberOfColumns = rsMetaData.getColumnCount();
for (int i = 1; i < numberOfColumns + 1; i++) {
String columnName = rsMetaData.getColumnName(i);
System.out.print(columnName + " ");
}
System.out.println();
System.out.println("----------------------");
while (rs.next()) {
for (int i = 1; i < numberOfColumns + 1; i++) {
System.out.print(rs.getString(i) + " ");
}
System.out.println();
}
}
private static Connection getConnection() throws Exception {
Class.forName("org.hsqldb.jdbcDriver");
String url = "jdbc:hsqldb:mem:data/tutorial";
return DriverManager.getConnection(url, "sa", "");
}
}
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