SQL Window Functions Series: LAG() and LEAD()
Dive deep into the powerful SQL window functions, LAG() and LEAD(). Explore their intricacies, discover real-world examples, and avoid common pitfalls.
2023-12-11
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sql compare
How to successfully deploy databases with external references
Database objects often have references to external databases which makes continuous integration problematic. In this article Liz Baron and Sebastian Meine demonstrate a solution.
2021-10-27
Fine-tuning Scripted Database Comparisons with SQL Compare
When comparing databases, save your standard options and filters to a single project file, and then use PowerShell to script them out to the command line. This allows you to reuse the same project file across multiple comparison operations.
2021-07-21
A Quick Diff Checker for SQL Server Databases
Compare the schemas of two SQL Server databases using SQL Compare command line then quickly produce a diff report showing you immediately which tables, views and functions have changed.
2021-07-16
A Quick Diff Checker for SQL Server Databases
Compare the schemas of two SQL Server databases using SQL Compare command line then quickly produce a diff report showing you immediately which tables, views and functions have changed.
2021-07-02
Comparing and Syncing Data using SQL Data Compare Command Line
Robert Sheldon demonstrates how to start automating data comparisons between two databases, from the Windows command line or PowerShell. With a single command, you can easily compare and sync data such as test data sets, or static data used for reference or lookup purposes.
2021-02-24
Automating SQL Compare Snapshots using SQL Snapper
If you have SQL Compare, then the SQL Snapper utility is very valuable 'extra' for certain team activities, because it can be freely distributed. It means that any developer can create a SQL Compare snapshot from databases that are on their local workstation and store them on the network.
2021-01-22
Using SQL Compare and SQL Data Compare within a PowerShell Cmdlet
SQL Compare and SQL Data Compare can be used together, from the command line, to provide a complete build process, or to script out changes to both the database and its development data. For doing this routinely, I find it easiest to script the operation using PowerShell.
2021-01-15
Maintaining a Database Build Script with SQL Compare
Phil Factor explores a lesser-known capability of SQL Compare, which is to help you maintain a 'traditional', well-documented, single file build script, for creating the current version of the database during development.
2021-01-06
Win a three-month subscription to Pluralsight
Redgate is giving you the chance to win a three-month subscription to Pluralsight (the technical skills training platform) in this month’s forum competition. To enter, simply share ‘how SQL Compare has helped you’.
2020-11-26 (first published: 2020-11-19)
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Question of the Day
Adding new column with DEFAULT II
Which number did the two COUNT(*) return:
DROP TABLE IF EXISTS #tmp CREATE TABLE #tmp (id INT NOT NULL) INSERT INTO #tmp (id) SELECT gs.value FROM GENERATE_SERIES(1, 5) AS gs ALTER TABLE #tmp ADD my_value INT NOT NULL CONSTRAINT df_tmp_my_value DEFAULT 1 SELECT COUNT(*) FROM #tmp AS t WHERE my_value = 1 ALTER TABLE #tmp DROP CONSTRAINT df_tmp_my_value ALTER TABLE #tmp ADD CONSTRAINT df_tmp_my_value DEFAULT 2 FOR my_value SELECT COUNT(*) FROM #tmp AS t WHERE my_value = 1See possible answers