3 files changed, 19 insertions, 10 deletions

diff --git a/system/database/drivers/oci8/oci8_utility.php b/system/database/drivers/oci8/oci8_utility.php
index dc259ac39..4d267dc6a 100644
--- a/system/database/drivers/oci8/oci8_utility.php
+++ b/system/database/drivers/oci8/oci8_utility.php
@@ -76,7 +76,7 @@ class CI_DB_oci8_utility extends CI_DB_utility {
      */
     function _list_tables()
     {
-        return "select TABLE_NAME FROM ALL_TABLES";
+        return "SELECT TABLE_NAME FROM ALL_TABLES";
     }
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/postgre/postgre_utility.php b/system/database/drivers/postgre/postgre_utility.php
index 0ee448f9e..7b51c3fe7 100644
--- a/system/database/drivers/postgre/postgre_utility.php
+++ b/system/database/drivers/postgre/postgre_utility.php
@@ -97,7 +97,7 @@ class CI_DB_postgre_utility extends CI_DB_utility {
 	/**
 	 * Optimize table query
 	 *
-	 * Generates a platform-specific query so that a table can be optimized
+	 * Is table optimization supported in Postgre?
 	 *
 	 * @access	private
 	 * @param	string	the table name
@@ -105,7 +105,7 @@ class CI_DB_postgre_utility extends CI_DB_utility {
 	 */
 	function _optimize_table($table)
 	{
-		return FALSE; // Is this supported in Postgre?
+		return FALSE; 
 	}
 
 	// --------------------------------------------------------------------
@@ -113,7 +113,7 @@ class CI_DB_postgre_utility extends CI_DB_utility {
 	/**
 	 * Repair table query
 	 *
-	 * Generates a platform-specific query so that a table can be repaired
+	 * Are table repairs supported in Postgre?
 	 *
 	 * @access	private
 	 * @param	string	the table name
@@ -121,7 +121,7 @@ class CI_DB_postgre_utility extends CI_DB_utility {
 	 */
 	function _repair_table($table)
 	{
-		return return FALSE; // Is this supported in Postgre?
+		return return FALSE;
 	}
 
 
diff --git a/system/database/drivers/sqlite/sqlite_utility.php b/system/database/drivers/sqlite/sqlite_utility.php
index 43c43e03c..ae241db87 100644
--- a/system/database/drivers/sqlite/sqlite_utility.php
+++ b/system/database/drivers/sqlite/sqlite_utility.php
@@ -34,7 +34,8 @@ class CI_DB_sqlite_utility extends CI_DB_utility {
 	 */
 	function _create_database()
 	{
-		// In SQLite, a database is created when you connect to the database
+		// In SQLite, a database is created when you connect to the database.
+		// We'll return TRUE so that an error isn't generated
 		return TRUE;
 	}
 
@@ -65,11 +66,17 @@ class CI_DB_sqlite_utility extends CI_DB_utility {
 	/**
 	 * List databases
 	 *
+	 * I don't believe you can do a database listing with SQLite
+	 * since each database is its own file.  I suppose we could
+	 * try reading a directory looking for SQLite files, but 
+	 * that doesn't seem like a terribly good idea
+	 *
 	 * @access	private
 	 * @return	bool
 	 */
 	function _list_databases()
 	{
+	
 		if ($this->db_debug)
 		{
 			return $this->display_error('db_unsuported_feature');
@@ -97,6 +104,8 @@ class CI_DB_sqlite_utility extends CI_DB_utility {
 	/**
 	 * Drop Table
 	 *
+	 *  Unsupported feature in SQLite
+	 *
 	 * @access	private
 	 * @return	bool
 	 */
@@ -114,7 +123,7 @@ class CI_DB_sqlite_utility extends CI_DB_utility {
 	/**
 	 * Optimize table query
 	 *
-	 * Generates a platform-specific query so that a table can be optimized
+	 * Is optimization even supported in SQLite?
 	 *
 	 * @access	private
 	 * @param	string	the table name
@@ -122,7 +131,7 @@ class CI_DB_sqlite_utility extends CI_DB_utility {
 	 */
 	function _optimize_table($table)
 	{
-		return FALSE; // Is this supported SQLite?
+		return FALSE;
 	}
 
 	// --------------------------------------------------------------------
@@ -130,7 +139,7 @@ class CI_DB_sqlite_utility extends CI_DB_utility {
 	/**
 	 * Repair table query
 	 *
-	 * Generates a platform-specific query so that a table can be repaired
+	 * Are table repairs even supported in SQLite?
 	 *
 	 * @access	private
 	 * @param	string	the table name
@@ -138,7 +147,7 @@ class CI_DB_sqlite_utility extends CI_DB_utility {
 	 */
 	function _repair_table($table)
 	{
-		return return FALSE; // Is this supported in SQLite?
+		return return FALSE;
 	}