JDBC for SQL Server - Herong's Tutorial Examples - v3.14, by Herong Yang
Listing All Databases - getCatalogs()
This section describes how to get a list of all databases on the SQL Server through the DatabaseMetaData object.
If you want to list all databases on the SQL Server, you can use the DatabaseMetaData method: getCatalogs(). It returns all databases in a ResultSet object with one field, TABLE_CAT, containing the database name.
Note that a JDBC catalog is mapped to SQL Server database.
The tutorial Java program below shows you how to list all databases on the SQL Server:
/* ListDatabases.java * Copyright (c) HerongYang.com. All Rights Reserved. */ import java.sql.*; public class ListDatabases { public static void main(String [] args) { Connection con = null; try { con = DriverManager.getConnection( "jdbc:sqlserver://localhost\\SQLEXPRESS;" + "user=herong;password=T0pSecret;" + "database=AdventureWorks2019"); DatabaseMetaData meta = con.getMetaData(); ResultSet res = meta.getCatalogs(); System.out.println("List of databases: "); while (res.next()) { System.out.println(" " +res.getString("TABLE_CAT")); } res.close(); con.close(); } catch (Exception e) { e.printStackTrace(); } } }
Here is the output of the program:
herong> java -cp .;mssql-jdbc-9.4.1.jre16.jar ListDatabases.java List of databases: AdventureWorks2019 master model msdb tempdb
Table of Contents
JDBC (Java Database Connectivity) Introduction
Microsoft SQL Server Express Edition
Microsoft JDBC Driver for SQL Server
Microsoft JDBC Driver - Query Statements and Result Sets
►Microsoft JDBC Driver - DatabaseMetaData Object
Commonly Used DatabaseMetaData Methods
Getting Database Server and Driver Info
►Listing All Databases - getCatalogs()
Listing All Schemas - getSchemas()
Listing All Tables - getTables()
Listing All Culumns - getColumns()
Listing All Stored Procedures - getProcedures()
Microsoft JDBC Driver - DDL Statements
Microsoft JDBC Driver - DML Statements
SQL Server - PreparedStatement
SQL Server CLOB (Character Large Object) - TEXT
SQL Server BLOB (Binary Large Object) - BLOB
Using Connection Pool with JDBC
JDBC-ODBC Bridge Driver - sun.jdbc.odbc.JdbcOdbcDriver
JDBC-ODBC Bridge Driver - Flat Text Files
JDBC-ODBC Bridge Driver - MS Access