Using Databasemetadate to get database information

Data | database

Import java.sql.*;
public class Getdbinfo
{
Public Getdbinfo ()
{
}

public static void Main (string[] args)
{
try{
Class.forName ("Com.microsoft.jdbc.sqlserver.SQLServerDriver"). newinstance ();
String url= "Jdbc:microsoft:sqlserver://gaoxiang:1433;databasename=master";
String user= "daryl715";
String pass= "1234";
String s;
Connection con=drivermanager.getconnection (Url,user,pass);
DatabaseMetaData Dbmd=con.getmetadata ();
s = Dbmd.getdrivername ();
System.out.println ("Driver name is:" +s);
System.out.println ("");

s = Dbmd.getdatabaseproductname ();
SYSTEM.OUT.PRINTLN ("Database name is:" +s);
System.out.println ("");

ResultSet rs = Dbmd.getschemas ();
System.out.println ("Pattern name has:");
while (Rs.next ())
System.out.print ("" +rs.getstring (1));
System.out.println ();

s = dbmd.getsqlkeywords ();
SYSTEM.OUT.PRINTLN ("The keyword in SQL is:" +s);
System.out.println ("");

int Max=dbmd.getmaxcolumnnamelength ();
System.out.println ("The maximum length of the column name can be:" +max);
System.out.println ("");

max = Dbmd.getmaxtablenamelength ();
System.out.println ("The maximum length of the table name can be:" +max);
System.out.println ("");

max = Dbmd.getmaxcolumnsinselect ();
System.out.println ("The maximum length of the number of column names that can be returned by a SELECT clause is:" +max);
System.out.println ("");

max = Dbmd.getmaxtablesinselect ();
System.out.println ("The maximum number of tables a SELECT statement can access:" +max);
System.out.println ("");

max = Dbmd.getmaxcolumnsintable ();
SYSTEM.OUT.PRINTLN ("Maximum number of columns allowed in the table:" +max);
System.out.println ("");

max = Dbmd.getmaxconnections ();
System.out.println ("Number of concurrent accessed users:" +max);
System.out.println ("");

max = Dbmd.getmaxstatementlength ();
System.out.println ("Maximum allowable length of SQL statement:" +max);
System.out.println ("");

s = dbmd.getnumericfunctions ();
SYSTEM.OUT.PRINTLN ("List of all mathematical functions of the database:" +s);
System.out.println ("");

s = dbmd.getstringfunctions ();
SYSTEM.OUT.PRINTLN ("List of all string functions of the database:" +s);
System.out.println ("");

s = dbmd.getsystemfunctions ();
SYSTEM.OUT.PRINTLN ("List of all system functions of the database:" +s);
System.out.println ("");

s = dbmd.gettimedatefunctions ();
SYSTEM.OUT.PRINTLN ("List of all date-time functions of the database:" +s);
System.out.println ("");

rs = Dbmd.gettypeinfo ();
while (Rs.next ())
{
System.out.print ("Data type name:" +rs.getstring (1));
System.out.print ("Data type:" + rs.getstring (2));
System.out.print ("precision:" + rs.getstring (3));
System.out.println ("Base:" + rs.getstring (18));
}
System.out.println ("");

s = Dbmd.geturl ();
System.out.println ("URL of this database:" +s);
System.out.println ("");

s = Dbmd.getusername ();
System.out.println ("User of this database:" +s);
System.out.println ("");

    String [] t = {"TABLE", "VIEW"};
    rs = dbmd.gettables (null, "HR", "%", t);
    while (Rs.next ()) {
      System.out.print ("Directory Name:" +rs.getstring ( 1));
      System.out.print ("Schema name:" +rs.getstring (2));
      System.out.print ("Table name:" +rs.getstring (3));
      System.out.print ("Type of Table:" +rs.getstring (4));
      System.out.println ("Note:" +rs.getstring (5));
     }
      System.out.println ("");

    rs = Dbmd.getprimarykeys (null, "HR", "EMPLOYEES");
    while (Rs.next ()) {
      System.out.print ("Directory Name:" +rs.getstring ( 1));
      System.out.print ("Schema name:" +rs.getstring (2));
      System.out.print ("Table name:" +rs.getstring (3));
      System.out.print ("Column name Order number:" +rs.getstring (4));
      System.out.print ("Column name Order number:" +rs.getstring (5));
      System.out.println ("PRIMARY Key Name:" +rs.getstring (6));
     }
      System.out.println ("");

rs = Dbmd.gettabletypes ();
System.out.println ("Type of table has:");
while (Rs.next ())
System.out.print ("" + rs.getstring (1));
System.out.println ();
System.out.println ("");

rs = Dbmd.getcolumns (null, "HR", "EMPLOYEES", "%");
System.out.println (table name + column name + data type + "local type name" + "column size" + "decimal place" + "Data base" + "is nullable" + "index number");
while (Rs.next ()) {
System.out.print (rs.getstring (3) + "");
System.out.print (Rs.getstring (4) + "");
System.out.print (rs.getstring (5) + "");
System.out.print (rs.getstring (6) + "");
System.out.print (rs.getstring (7) + "");
System.out.print (rs.getstring (9) + "");
System.out.print (rs.getstring (10) + "");
System.out.print (rs.getstring (11) + "");
System.out.println (Rs.getstring (17) + "");
}
System.out.println ("");

rs = Dbmd.getindexinfo (null, "HR", "EMPLOYEES", false, false);

SYSTEM.OUT.PRINTLN ("Table name" + "index" + "index type" + "indexed column name" + "index order" + "decimal digits" + "data base" + "is nullable" + "index number");
while (Rs.next ()) {
System.out.print (rs.getstring (3) + "");
System.out.print (rs.getstring (6) + "");
System.out.print (rs.getstring (7) + "");
System.out.print (rs.getstring (9) + "");
System.out.println (rs.getstring (10) + "");
}
System.out.println ("");

Rs.close ();
Con.close ();
}
catch (Exception e) {System.out.println (e);}
New Getdbinfo ();
}
}