Example usage for java.sql Connection getMetaData

Introduction

In this page you can find the example usage for java.sql Connection getMetaData.

Prototype

DatabaseMetaData getMetaData() throws SQLException;

Source Link

Document

Retrieves a DatabaseMetaData object that contains metadata about the database to which this Connection object represents a connection.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet rs = null;/*from  w  w  w .j  a va 2  s . c o  m*/
    DatabaseMetaData meta = conn.getMetaData();
    rs = meta.getTables(null, null, null, new String[] { "TABLE", "VIEW" });
    while (rs.next()) {
        String tableOrViewName = rs.getString("TABLE_NAME");
        System.out.println("getTableNames(): tableOrViewName=" + tableOrViewName);
    }

    st.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {

    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);/*  ww  w  . j a  v  a 2s. co  m*/

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);

    try {
        connection.createStatement().execute("select wrong");
    } catch (SQLException e) {
        while (e != null) {
            String message = e.getMessage();

            String sqlState = e.getSQLState();

            int errorCode = e.getErrorCode();

            driverName = connection.getMetaData().getDriverName();
            if (driverName.equals("Oracle JDBC Driver") && errorCode == 123) {
            }

            e = e.getNextException();
        }
    }

}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet rsColumns = null;//from  w  ww  .  jav  a  2  s  .com
    DatabaseMetaData meta = conn.getMetaData();
    rsColumns = meta.getColumns(null, null, "survey", null);
    while (rsColumns.next()) {
        System.out.println(rsColumns.getString("TYPE_NAME"));
        System.out.println(rsColumns.getString("COLUMN_NAME"));
    }
    st.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    DatabaseMetaData meta = conn.getMetaData();
    // The '_' character represents any single character.
    // The '%' character represents any sequence of zero
    // or more characters.
    ResultSet rs = meta.getBestRowIdentifier(conn.getCatalog(), null, "survey",
            DatabaseMetaData.bestRowTemporary, false);
    while (rs.next()) {

        short actualScope = rs.getShort("SCOPE");
        String columnName = rs.getString("COLUMN_NAME");
        int dataType = rs.getInt("DATA_TYPE");
        String typeName = rs.getString("TYPE_NAME");
        int columnSize = rs.getInt("COLUMN_SIZE");
        short decimalDigits = rs.getShort("DECIMAL_DIGITS");
        short pseudoColumn = rs.getShort("PSEUDO_COLUMN");

        System.out.println("tableName=survey");
        System.out.println("scope=" + actualScope);
        System.out.println("columnName=" + columnName);
        System.out.println("dataType=" + dataType);
        System.out.println("typeName" + typeName);
        System.out.println("columnSize" + columnSize);
        System.out.println("decimalDigits" + decimalDigits);
        System.out.println("pseudoColumn" + pseudoColumn);
    }//from w ww  .ja v a2  s  . c  o  m

    st.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet catalogs = null;/*from   w w  w . ja va2 s.  c  o m*/
    DatabaseMetaData meta = conn.getMetaData();
    catalogs = meta.getCatalogs();

    while (catalogs.next()) {
        String catalog = catalogs.getString(1); //"TABLE_CATALOG"
        System.out.println("catalog: " + catalog);
    }

    st.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet rs = null;/*w ww. j  a  v a  2 s  .  co  m*/
    DatabaseMetaData meta = conn.getMetaData();
    // The Oracle database stores its table names as Upper-Case,
    // if you pass a table name in lowercase characters, it will not work.
    // MySQL database does not care if table name is uppercase/lowercase.
    //
    rs = meta.getImportedKeys(conn.getCatalog(), null, "survey");
    while (rs.next()) {
        String fkTableName = rs.getString("FKTABLE_NAME");
        String fkColumnName = rs.getString("FKCOLUMN_NAME");
        int fkSequence = rs.getInt("KEY_SEQ");
        System.out.println("getExportedKeys(): fkTableName=" + fkTableName);
        System.out.println("getExportedKeys(): fkColumnName=" + fkColumnName);
        System.out.println("getExportedKeys(): fkSequence=" + fkSequence);
    }

    st.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet rs = null;//from ww w . j a v a 2 s  .c  o  m
    DatabaseMetaData meta = conn.getMetaData();
    // The Oracle database stores its table names as Upper-Case,
    // if you pass a table name in lowercase characters, it will not work.
    // MySQL database does not care if table name is uppercase/lowercase.
    //
    rs = meta.getExportedKeys(conn.getCatalog(), null, "survey");
    while (rs.next()) {
        String fkTableName = rs.getString("FKTABLE_NAME");
        String fkColumnName = rs.getString("FKCOLUMN_NAME");
        int fkSequence = rs.getInt("KEY_SEQ");
        System.out.println("getExportedKeys(): fkTableName=" + fkTableName);
        System.out.println("getExportedKeys(): fkColumnName=" + fkColumnName);
        System.out.println("getExportedKeys(): fkSequence=" + fkSequence);
    }

    st.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet rs = null;/*from  ww  w .  j av  a 2  s.c  o  m*/
    DatabaseMetaData meta = conn.getMetaData();
    rs = meta.getTypeInfo();
    while (rs.next()) {
        // Get the database-specific type name
        String typeName = rs.getString("TYPE_NAME");

        // Get the java.sql.Types type to which this
        // database-specific type is mapped
        short dataType = rs.getShort(2);

        // Get the name of the java.sql.Types value.
        System.out.println("type name=" + typeName);
        System.out.println("dataType=" + dataType);
        System.out.println("jdbcType=" + dataType);
    }
    st.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet rs = null;//from ww  w  . j a  v a 2s  .  c  o  m
    DatabaseMetaData meta = conn.getMetaData();
    rs = meta.getTypeInfo();
    while (rs.next()) {
        // Get the database-specific type name
        String typeName = rs.getString("TYPE_NAME");

        // Get the java.sql.Types type to which this
        // database-specific type is mapped
        short dataType = rs.getShort("DATA_TYPE");

        // Get the name of the java.sql.Types value.
        System.out.println("type name=" + typeName);
        System.out.println("dataType=" + dataType);
        System.out.println("jdbcType=" + dataType);
    }
    st.close();
    conn.close();
}

---

From source file:TableTypes.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;

    try {/*  w  w w  .j a  va  2s  . c  om*/
        Class.forName("myDriver.ClassName");

    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {
        con = DriverManager.getConnection(url, "myLogin", "myPassword");

        DatabaseMetaData dbmd = con.getMetaData();
        String dbmsName = dbmd.getDatabaseProductName();
        ResultSet rs = dbmd.getTableTypes();
        System.out.print("The following types of tables are ");
        System.out.println("available in " + dbmsName + ":  ");

        while (rs.next()) {
            String tableType = rs.getString("TABLE_TYPE");
            System.out.println("    " + tableType);
        }

        rs.close();
        con.close();

    } catch (SQLException ex) {
        System.err.print("SQLException: ");
        System.err.println(ex.getMessage());
    }
}

---

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