Add db support for PostgreSQL and Oracle.

test/db-mysql.sql

@@ -0,0 +1,21 @@
+
+CREATE DATABASE helmaTest;
+USE helmaTest;
+
+GRANT ALL ON helmaTest.* TO helma@localhost IDENTIFIED BY 'secret';
+
+CREATE TABLE tb_person (
+  person_id MEDIUMINT(10) NOT NULL,
+  person_name TINYTEXT,
+  person_height TINYINT unsigned,
+  person_dateofbirth DATETIME,
+  person_org_id MEDIUMINT(10) unsigned,
+  PRIMARY KEY (person_id)
+);
+
+CREATE TABLE tb_organisation (
+   org_id MEDIUMINT(10) unsigned NOT NULL,
+   org_name TINYTEXT,
+   org_country TINYTEXT,
+   PRIMARY KEY (org_id)
+);