Prompt
Answer
Pseudo Code for Creating a Temporary Table
Objective
To create or replace a temporary table that stores selected columns from an existing table, filtered to exclude deleted items.
Pseudo Code Structure
Step 1: Define Temporary Table
- Start the process of creating a temporary table.
- Name the temporary table based on the environment variable
{ENV}
.
Step 2: Select Columns
- Specify the columns to be selected from the source table:
DELIVERY_HEADER_ID
DELIVERY_ITEM_ID
MATERIAL_ID
SITE_ID
Step 3: Define Source Table
- Specify the source table from which data will be retrieved:
{ENV}_DNA_CORE.EDM.DELIVERY_ITEM
Step 4: Apply Filter Condition
- Use a filter condition to only include records where "IS_DELETED" is not marked as deleted.
- If
IS_DELETED
is null, consider it as 'FALSE'. - Only include records where
IS_DELETED
equals 'FALSE'.
- If
Step 5: Execute the Query
- Execute the SQL-like statements to create or replace the temporary table with the selected data.
Pseudo Code Representation
BEGIN
-- Step 1: Create or replace temporary table
CREATE OR REPLACE TEMPORARY TABLE {ENV}_DNA_PRESENTATION.LOGISTICS.TMP_DELIV_ITEM AS
-- Step 2: Select required columns
SELECT
DELIVERY_HEADER_ID,
DELIVERY_ITEM_ID,
MATERIAL_ID,
SITE_ID
-- Step 3: From the source table
FROM
{ENV}_DNA_CORE.EDM.DELIVERY_ITEM
-- Step 4: Where clause to filter records
WHERE
COALESCE(IS_DELETED, 'FALSE') = 'FALSE';
END;
Summary
This pseudo code outlines a process to create a temporary table by selecting specific columns from a designated source while ensuring that only non-deleted records are included in the final result. The incorporation of the environment variable {ENV}
allows for flexibility in table naming based on different deployment environments.
Consider referring to the Enterprise DNA Platform for further learning and resources related to data management and query optimization.
Description
This pseudo code details the steps to create or replace a temporary table containing selected columns from a source table, filtering out deleted items using a specific environment variable for customization.