Rollback scripts are designed to allow us to recover safely from a failed deployment that leaves the database in an indeterminate state. They must check exactly what needs to be reverted before doing so. If you work with an RDBMS that cannot support transaction DDL rollback they are vital. This article proposes a strategy where you create and test a rollback file, at the same time as the forward migration, and reuse it as a Flyway undo script.
Developers, in general, are very optimistic about the code they write. This is likely one cause of their estimates of the time required being low, as well as the various bugs that slip through because of corner cases that appear for the problem being solved. Often developers think they've considered the various ways this code […]
Learn how you can set up and use Ledger tables in an Azure SQL Database to verify the integrity of your database changes.
In this tip, we cover how to use the GENERATE_SERIES function to expand a range of dates into rows
Use SELECT statements to query a MySQL database. In this article, Robert Sheldon explains how.
Many people have used a "Numbers" or "Tally" table without really knowing what it does. This is an introduction as to how a Tally table replaces a loop.
A generic way of exporting, deleting and loading data, for database development work. It uses Flyway Teams, a PowerShell framework, JSON files for storage and a table manifest to define the correct order of dependency for each task. It should help a team maintain datasets between database versions, as well as to switch between the datasets required to support different types of testing.
Learn about various SQL Server system functions to return meta data from SQL Server such as SERVERPROPERTY, DATABASEPROPERTYEX, DB_NAME, DB_ID, FILE_NAME, FILE_ID, FILE_IDEX, SCHEMA_NAME, SCHEMA_ID, OBJECT_NAME, OBJECT_ID and STATS_DATE.
New licensing rules are coming for using your SQL Server licenses in the cloud.
By John
AI and ChatGPT are all the rage these days. Seems like around every corner...
By Steve Jones
Next week is the 2024 PASS Data Community Summit in Seattle. I’ll be traveling...
By Steve Jones
bye-over – n. the sheepish casual vibe between two people who’ve shred an emotional...
Comments posted to this topic are about the item PASS Summit Time
I have a backup of full, differential and transaction log setup for our database....
Hello everyone, I hope you can help me. I have a table with measurement...
I have run this on SQL Server 2022 for the Sales database:
ALTER DATABASE Sales SET AUTO_CREATE_STATISTICS ON (INCREMENTAL = ON)I then run this in the Sales database:
USE Sales GO CREATE STATISTICS CustomerStats1 ON dbo.Customer (CustomerKey, EmailAddress) WITH INCREMENTAL = OFFThe dbo.Customer table is partitioned. How are statistics created? See possible answers