Contents
What is data conditioning and cleaning?
Data conditioning and cleaning are two different concepts that are closely related. Both are designed to optimize the integrity of data and make its management more conducive to the goals of the company.
How do you prepare test data for ETL Testing?
Many of the ETL Testing projects use a snapshot of Production data for doing the testing….HOW TO PROCEED?
- Accrual of business rules from product/ business owners based on their expectations.
- Convert business rules into test scenarios and test cases.
- Derive expected results of each test case associated with each scenario.
How is Data conditioning used in data management?
Data conditioning is the use of data management and optimization techniques which result in the intelligent routing, optimization and protection of data for storage or data movement in a computer system.
How to use and condition and or condition in SQL?
This SQL tutorial explains how to use the AND condition and the OR condition together in a single query with syntax and examples. The SQL AND condition and OR condition can be combined to test for multiple conditions in a SELECT, INSERT, UPDATE, or DELETE statement.
Is there a conditional function in Oracle SQL?
Oracle provides conditional functions DECODE and CASE to impose conditions even in SQL statement. The function is the SQL equivalence of IF..THEN..ELSE conditional procedural statement. DECODE works with values/columns/expressions of all data types.
Which is the best conditional expression in SQL?
Following are Conditional Expressions in SQL The CASE Expression: Let you use IF-THEN-ELSE statements without having to invoke procedures. The DECODE Function : Facilitates conditional inquiries by doing the work of a CASE or IF-THEN-ELSE statement. COALESCE : Returns the first non-null argument.