> re documentation
> http://docs.oracle.com/javase/6/docs/api/java/sql/ResultSetMetaData.html
>
> re example
>
> Server: 9.0.4 Driver: PostgreSQL Native Driver: PostgreSQL 9.1 JDBC3
> (build 901)
>
> ResultSet rs = meta.getTables(null, null, null, null);
> ResultSetMetaData rsmd = rs.getMetaData();
> System.out.println(rsmd.getColumnCount());
>
> This will print the value of 5 not 10.
>
> Change the code to
> for (int i = 1; i <= rsmd.getColumnCount(); i++) {
> System.out.println(rsmd.getColumnName(i));
> }
>
> http://docs.oracle.com/javase/6/docs/api/java/sql/DatabaseMetaData.html#getTables(java.lang.String,
> java.lang.String, java.lang.String, java.lang.String[])
> returns names as follows was expecting upper case names similar to
> rs.getString("TABLE_NAME")
> table_cat
> table_schem
> table_name
> table_type
> remarks
The second reference you give to the DatabaseMetaData indicates in the
javadocs information for the getTables():
"Note: Some databases may not return information for all tables."
Indeed the PostgreSQL JDBC does only return the first five as does MySQL,
but SQLite gives all ten. As far as the column names as others have said
one should not rely on any particular case defaults. I learned with the
MyJSQLView application to always stipulate names with the database identifer
to fully qualifier table and column names.
Example:
-- MyJSQLView SQL Dump
-- Version: 3.31
-- WebSite: http://myjsqlview.org
--
-- Host: 127.0.0.1
-- Generated On: 2011.12.09 AD at 09:30:36 MST
-- SQL version: PostgreSQL 9.0.1
-- Database: key_tables
--
--
-- Table structure for table "public"."keY_tAble2"
--
DROP TABLE IF EXISTS "public"."keY_tAble2";
CREATE TABLE "public"."keY_tAble2" (
"Host" char(60) DEFAULT '' NOT NULL,
"Db" char(64) DEFAULT '' NOT NULL,
"Username" char(16) DEFAULT '' NOT NULL,
"select_priv" boolean DEFAULT true NOT NULL,
PRIMARY KEY ("Host","Db","Username")
);
--
-- Dumping data for table "public"."keY_tAble2"
--
INSERT INTO "public"."keY_tAble2" ("Host", "Db", "Username", "select_priv")
VALUES('cindy', 'sample', 'danap', 't');
Output from getTables();
Table CAT: null
Table Schem: public
Table Name: keY_tAble2
Table Type: TABLE
Remarks: null
