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While transferring your data, we can also apply what are referred to as transformations to that data. Transformations essentially alter the data according to some logical rule(s). The alteration can be as simple as changing a column name, or as complex as an analysis of the integrity of the data and application of rules to change it if necessary. To think about how this is applied, consider the example I gave earlier of taking data from a field that allows NULLs and moving it to a table that doesn’t allow NULLs.

Int Integer 4 Whole numbers from –2,147,483,648 to 2,147,483,647. qxd:WroxBeg 11/22/08 10:19 AM Page 13 Chapter 1: RDBMS Basics: What Makes Up a SQL Server Database? Data Type Name Class Size in Bytes Nature of the Data SmallInt Integer 2 Whole numbers from –32,768 to 32,767. TinyInt Integer 1 Whole numbers from 0 to 255. Decimal or Numeric Decimal/ Numeric Varies Fixed precision and scale from –1038–1 to 1038–1. The two names are synonymous. Money Money 8 Monetary units from –263 to 263 plus precision to four decimal places.

You can select just one or two columns of multiple rows. ) I use this option for almost everything because I find that I usually want one of the benefits I just listed. Results to File Think of this one as largely the same as Results to Text, but instead of to screen, it routes the output directly to a file. I use this one to generate files I intend to parse using some utility or that I want to easily e-mail. sqlcmd Mode We will discuss sqlcmd a bit more shortly. For now, suffice it to say that it is a tool that helps us run queries from a Windows command line.

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