AI generated ETL ran clean on the first try, and it took six weeks to find out what it was missing. A late Monday file, a file sent twice, a file full of zeros and mangled names all got through. The ugly old job had a rule for every one of them, and nobody had written those rules down. Now I ask AI for the failure list before I ask for any code.
SQL SERVER – Stretch Database – Free Trial Subscriptions Can Provision Basic, Standard S0 through S3 Databases, up to 100 eDTU Basic or Standard Elastic Pools and DW100 Through DW400 Data Warehouses
Stretch Database failed again for a reader. The log said Free Trial subscriptions can provision only Basic and Standard S0 through S3 databases.
Table Partitioning Is Not Sharding: What Partitioning Really Gives You
See why partitioning is not sharding, build monthly partitions, inspect elimination, and switch a month out for simpler data management.
Reducing the Size of a Reporting Database
Reducing the size of a reporting database starts with compression, archiving, and index review; shrinking files comes last.
What Is a Star Schema?
A star schema is one fact table surrounded by dimension tables. What facts and dimensions hold, why grain is the decision you cannot undo, why the data repeats on purpose, and a worked example in AdventureWorksDW.
Designing a Date Dimension
A date dimension makes reporting calendars explicit with fiscal periods, holidays, weekdays, and a repeatable SQL Server build script.
SQL SERVER – Step by Step Guide to Beginning Data Quality Services in SQL Server 2012 – Introduction to DQS
A step by step introduction to Data Quality Services in SQL Server 2012 for beginners: build a Knowledge Base from an Excel file and use it to spot bad data.