Understanding ORA-00904: Invalid Identifier in Oracle Queries

Comparing Data Between Two Tables in Oracle SQL Using LTRIM Function to Remove Prefixes

Understanding and Generating Hierarchical Tables in Oracle: A Modular SQL Script Approach

Retrieving Foreign Key Column Data Using Primary Key Column of a Table

How to Handle No Data Found and Too Many Rows Exceptions During Bulk Record Insertion Using PL/SQL

Avoiding Invalid Identifiers in Oracle Views

How to Extract Year Values from Date Strings in SQL

Handling Missing Current Month's Values in Oracle SQL: A Step-by-Step Solution

SELECT DISTINCT ITEMID FROM YOUR_TABLE WHERE NOT (VALIDFROM BETWEEN DATE '2024-01-03' AND TO_DATE('2024-01-03 23:59:59', 'YYYY-MM-DD HH24:MI:SS') OR DATE '2024-01-03' BETWEEN VALIDFROM AND COALESCE(VALIDTO, DATE '9999-12-31'))

Mastering Complex SQL Joins: A Step-by-Step Guide to Left Joins and Aggregation