Create database_exploration.sql

Author: DataWithBaraa

scripts/database_exploration.sql

@@ -0,0 +1,30 @@
+/*
+===============================================================================
+Database Exploration
+===============================================================================
+Purpose:
+    - To explore the structure of the database, including the list of tables and their schemas.
+    - To inspect the columns and metadata for specific tables.
+
+Table Used:
+    - INFORMATION_SCHEMA.TABLES
+    - INFORMATION_SCHEMA.COLUMNS
+===============================================================================
+*/
+
+-- Retrieve a list of all tables in the database
+SELECT 
+    TABLE_CATALOG, 
+    TABLE_SCHEMA, 
+    TABLE_NAME, 
+    TABLE_TYPE
+FROM INFORMATION_SCHEMA.TABLES;
+
+-- Retrieve all columns for a specific table (dim_customers)
+SELECT 
+    COLUMN_NAME, 
+    DATA_TYPE, 
+    IS_NULLABLE, 
+    CHARACTER_MAXIMUM_LENGTH
+FROM INFORMATION_SCHEMA.COLUMNS
+WHERE TABLE_NAME = 'dim_customers';