List of usage examples for java.sql Connection createStatement
Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException;
Statement
object that will generate ResultSet
objects with the given type and concurrency. From source file:Main.java
public static void main(String[] args) throws Exception { Connection conn = getConnection(); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); st.executeUpdate("create table survey (id int,name varchar(30));"); st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')"); st.executeUpdate("insert into survey (id,name ) values (2,null)"); st.executeUpdate("insert into survey (id,name ) values (3,'Tom')"); st = conn.createStatement();//from www . ja v a2 s . com ResultSet rs = st.executeQuery("SELECT * FROM survey"); while (rs.next()) { String name = rs.getString(2); if (rs.wasNull()) { System.out.println("was NULL"); } else { System.out.println("not NULL"); } } rs.close(); st.close(); conn.close(); }
From source file:Main.java
public static void main(String[] args) throws Exception { Connection conn = getConnection(); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); st.executeUpdate("create table survey (id int,name varchar(30));"); st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')"); st.executeUpdate("insert into survey (id,name ) values (2,null)"); st.executeUpdate("insert into survey (id,name ) values (3,'Tom')"); ResultSet rs = st.executeQuery("SELECT * FROM survey"); // Move cursor to the row to update rs.first();/*from www . j a v a 2 s.c om*/ // Update the value of column column_1 on that row rs.updateString(2, "new data"); // Update the row; if autocommit is enabled, // update is committed rs.updateRow(); rs.close(); st.close(); conn.close(); }
From source file:Main.java
public static void main(String[] args) throws Exception { Connection conn = getConnection(); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); st.executeUpdate("create table survey (id int,name varchar(30));"); st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')"); st.executeUpdate("insert into survey (id,name ) values (2,null)"); st.executeUpdate("insert into survey (id,name ) values (3,'Tom')"); ResultSet rs = st.executeQuery("SELECT * FROM survey"); // Move cursor to the row to update rs.first();/*from w w w .ja v a 2 s. c om*/ // Update the value of column column_1 on that row rs.updateString("name", "new data"); // Update the row; if autocommit is enabled, // update is committed rs.updateRow(); rs.close(); st.close(); conn.close(); }
From source file:Main.java
public static void main(String[] args) throws Exception { Connection conn = getConnection(); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); st.executeUpdate("create table survey (id int,name varchar(30));"); st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')"); st.executeUpdate("insert into survey (id,name ) values (2,null)"); st.executeUpdate("insert into survey (id,name ) values (3,'Tom')"); ResultSet rs = st.executeQuery("SELECT * FROM survey"); // Move cursor forward while (rs.next()) { String id = rs.getString("id"); System.out.println(id);/*from w w w . j a va 2 s .c om*/ } // Move cursor backward while (rs.previous()) { // Get data at cursor String id = rs.getString("id"); System.out.println(id); } rs.close(); st.close(); conn.close(); }
From source file:Main.java
public static void main(String[] args) throws Exception { Connection conn = getConnection(); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); st.executeUpdate("create table survey (id int,name varchar(30));"); st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')"); st.executeUpdate("insert into survey (id,name ) values (2,null)"); st.executeUpdate("insert into survey (id,name ) values (3,'Tom')"); ResultSet rs = st.executeQuery("SELECT * FROM survey"); // move to the end of the result set rs.last();//from ww w.ja v a2 s .c o m // get the row number of the last row, which is also the row count int rowCount = rs.getRow(); System.out.println(rowCount); // now you may move the cursor to the front of this ResultSet object, // just before the first row rs.beforeFirst(); rs.close(); st.close(); conn.close(); }
From source file:Main.java
public static void main(String[] args) throws Exception { Connection conn = getConnection(); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); st.executeUpdate("create table survey (id int,name varchar(30));"); st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')"); st.executeUpdate("insert into survey (id,name ) values (2,null)"); st = conn.createStatement();/*from ww w . jav a2 s .c o m*/ ResultSet rs = st.executeQuery("SELECT * FROM survey"); int rsConcurrency = rs.getConcurrency(); if (rsConcurrency == java.sql.ResultSet.CONCUR_READ_ONLY) { System.out.println("java.sql.ResultSet.CONCUR_READ_ONLY"); } else if (rsConcurrency == java.sql.ResultSet.CONCUR_UPDATABLE) { System.out.println("java.sql.ResultSet.CONCUR_UPDATABLE"); } else { // it is an error } rs.close(); st.close(); conn.close(); }
From source file:Main.java
public static void main(String args[]) throws Exception { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); Connection con = DriverManager.getConnection("jdbc:odbc:Contacts"); Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); ResultSet rs = stmt.executeQuery("select * from employee"); rs.moveToInsertRow();// w ww . ja va2s . c o m rs.updateInt(1, 150); rs.updateString("First_Name", "Nigel"); rs.updateString("Last_Name", "Thornebury"); rs.insertRow(); }
From source file:Main.java
public static void main(String args[]) throws Exception { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); Connection con = DriverManager.getConnection("jdbc:odbc:Contacts"); Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); ResultSet rs = stmt.executeQuery("select * from employee"); rs.moveToInsertRow();/* www. j a v a 2 s . c o m*/ rs.updateInt("Contact_ID", 150); rs.updateString("First_Name", "Nigel"); rs.updateString("Last_Name", "Thornebury"); rs.insertRow(); }
From source file:Main.java
public static void main(String[] args) throws Exception { Connection conn = getConnection(); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); st.executeUpdate("create table survey (id int,name varchar(30));"); st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')"); st.executeUpdate("insert into survey (id,name ) values (2,null)"); st = conn.createStatement();//from w w w . j av a 2s . c om ResultSet rs = st.executeQuery("SELECT * FROM survey"); int rsType = rs.getType(); if (rsType == java.sql.ResultSet.TYPE_FORWARD_ONLY) { System.out.println("java.sql.ResultSet.TYPE_FORWARD_ONLY"); } else if (rsType == java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE) { System.out.println("java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE"); } else if (rsType == java.sql.ResultSet.TYPE_SCROLL_SENSITIVE) { System.out.println("java.sql.ResultSet.TYPE_SCROLL_SENSITIVE"); } else { // it is an error } rs.close(); st.close(); conn.close(); }
From source file:Main.java
public static void main(String[] args) throws Exception { Connection conn = getConnection(); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); st.executeUpdate("create table survey (id int,name varchar(30));"); st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')"); st.executeUpdate("insert into survey (id,name ) values (2,null)"); st.executeUpdate("insert into survey (id,name ) values (3,'Tom')"); st = conn.createStatement();/* w ww .j av a2 s . c o m*/ ResultSet rs = st.executeQuery("SELECT * FROM survey"); ResultSetMetaData rsMetaData = rs.getMetaData(); int numberOfColumns = rsMetaData.getColumnCount(); // get the column names; column indexes start from 1 for (int i = 1; i < numberOfColumns + 1; i++) { String columnName = rsMetaData.getColumnName(i); String tableName = rsMetaData.getTableName(i); System.out.println(columnName); System.out.println(tableName); } rs.close(); st.close(); conn.close(); }