Join Simon Allardice for an in-depth discussion in this video Introduction to SQL functions, part of SQL Server 2008 Essential Training.
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Earlier we saw a few examples of what are called aggregate functions in SQL,…like using COUNT to return the total number of rows in a table or using MAX to…return in the largest value in a particular column, or average or SUM or MIN.…These functions, like in other languages, are just a way of packaging up a piece…of useful behavior and giving it a name, so that we can use it again-and-again.…When you're writing these in SQL Server Management Studio they tend to show up in hot pink.…
We do have a few other aggregate functions, but these are really just the tip of…the iceberg, because SQL Server has over 200 functions.…But don't worry. You don't need to go and memorize every single one of them,…because although some of these 200 things, like COUNT and MAX and MIN, are so…common and so useful that you could end up using them on almost a daily basis,…some functions are specialized enough that you might work with SQL Server for…years and never come across them.…But they're all packaged behavior, packaged operations.…
- Using T-SQL (Transact-SQL)
- Managing databases with SQL Server Management Studio
- Understanding database normalization
- Using SELECT statements
- Building indexes
- Monitoring database size and integrity
- Backing up and restoring databases
- Creating functions and stored procedures
- Managing database permissions
- Creating and formatting reports
- Adding charts to reports
- Creating and executing a simple SSIS package
Skill Level Beginner
1. Getting Started
2. Installing SQL Server 2008 R2
3. Tools and System Databases
SQL Server system databases2m 22s
4. Creating Databases
5. Importing Existing Data
6. Retrieving Data with SQL
7. Inserting and Updating Data
8. SQL Functions
9. Stored Procedures and Transactions
10. Core Administration Tasks
11. Backing Up and Restoring
12. Security Features
13. Reporting Services
14. Integration Services
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