In SQL Server Integration Services, connection managers are used as gateways for most any external read and write operation. Connection managers are type- and format-specific, and in the case...
2019-09-24 (first published: 2019-09-16)
381 reads
SQL Server Integration Services is equipped with tasks and containers to make it easy to design and maintain the flow of ETL: which logic should be executed, when should...
2019-09-18 (first published: 2019-09-09)
470 reads
In SQL Server Integration Services, the lookup component is one of the most frequently used tools for data validation and completion. The lookup component is provided as a means...
2019-09-05
279 reads
SQL Server Integration Services is well designed for retrieving and processing data on the fly, directly in the data flow pipeline. However, there are circumstances that occasionally require the...
2019-09-03
43 reads
In the control flow for SQL Server Integration Services, the “lines” we commonly use to connect tasks to each other are actually smart controls. These SSIS precedence constraints allow...
2019-09-02
29 reads
One of the most common questions I am asked about ETL configuration is how much memory SSIS requires. When configuring a new instance of SQL Server running SSIS, or...
2019-05-02
218 reads
One of my favorite recent additions to SQL Server is the ability to use temporal tables to retain change history. As I wrote in an earlier post on this...
2019-04-02
153 reads
Change detection is a critical component of any system that moves data from one structure to another. Most data movement...
2019-03-22
403 reads
Change detection is a critical component of any system that moves data from one structure to another. Most data movement mechanisms are designed to move a subset of the...
2019-03-22
15 reads
For organizations using SQL Server 2012 and newer, the SSIS catalog is the ideal tool for storing, executing, and monitoring...
2019-03-05
820 reads
By James Serra
Making Data AI-Ready, Part 3 (This is the final article in a three-part series...
By Steve Jones
I use ConEmu for my terminal interface. I’m still on Windows 10 at home,...
Creating a Fabric workspace takes about 30 seconds. Restructuring workspaces after people have built...
Comments posted to this topic are about the item Adding new column with DEFAULT...
Comments posted to this topic are about the item Advanced Deployment Scenarios: Stairway to...
Comments posted to this topic are about the item You Need a DBA Pipeline
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