I was working this weekend with a fairly simple Excel spreadsheet, and I had to decompose one cell in it out to three columns in a SQL Server table. There are tools within SQL Server Integration Services (SSIS) that should be able to do that, but I just couldn’t find my way around them properly. I’m not as familiar with SSIS as I would like to be ...

I’m a big fan of code that writes code – most of the time. For instance, whenever you use the “templates” feature in SQL Server Management Studio (SSMS) or the Maintenance Wizard, you’re using code that writes other code. There’s even a trick of writing Transact-SQL (T-SQL) code that in turn creates other code. But there is a class of code ...

Most data professionals I’ve met work in two modes: we plan for our day, and we react to the situations around us. I’m staring at my list of things that I need to do today right now, which is my planned work. Of course, I have no idea how much of that will really get done – it’s optimistic to be sure. On the other hand I have several systems I ...

I need your help. I know how I create databases, and I’ve watched a lot of other data professionals follow their own processes for that, but I want to know how YOU do it.   I’ve written about the process I follow for a complete database design on InformIT (use the ''Next'' button at the bottom of these to see them all). Beyond starting ...

As the Data Professional in your organization, the rest of the org looks to you to ensure that the system can handle what the business requires. To do that, you need to know two things: what the business requires, and what SQL Server can do. But of course there’s a bit more to it than that. Knowing the business side of the requirements – well, I ...

OK – In SQL Server 2008 R2 we did “re-use” an acronym or two (DAC and DTA), but it’s important to remember there are actually two parts to this new feature. One is the Data Application Component (DAC) and the other is the Data Tier Application (DTA). The DAC is the file created for a DTA. In SQL Server 2008R2 and Visual Studio you’ll find there ...

Last week I ran into an argument I’ve had since I left the mainframe space decades ago. A developer told me “DBA’s don’t design databases.” The inference was that DBA’s (i.e., Database Administrators) only worry about hardware, security, OS, database backups, things like that. He seemed amazed that a DBA would ever do “data” work. It may be the ...

I have scripts that re-create my databases for testing and development purposes. But sometimes I want to take the data from a set of tables and move it as well – I could use SSIS, or a SELECT INTO statement, but what if I want to “re-set” the data to a point in time? In other words, load it with some “base data”? I thought this might be a good ...

Yesterday I blogged about changing a Primary Key (PK) during the design phase, and before you have data in the database. Even then, it’s not trivial to change the data type or column(s) that make(s) up the PK. When you have data in that Primary Key and/or you have Foreign Keys (FK) that point to a PK field, this becomes a much more involved ...