Whether you're a complete beginner, someone who just finished our SQL Basics in MS SQL Server course, or an SQL Server enthusiast who's simply eager to hone their skills, there's always room for improvement. This practice set will test your basic SQL knowledge and will show you where you...
1. Recap of SQL JOIN types 0/21 Review the most common types of JOINs. Practice JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN and others. List of exercises Start now 2. Multiple JOINs 0/13 Refine your joining skills. Exercise joining more than two tables in one SQL query. List ...
Best Practice #1 – Pulling High Volumes of Data Recently we had to pull data from a source table which had 300 millions records to a new target table. Initially when the SSIS package started, everything looked fine, data was being transferred as expected but gradually the performance degraded...
Do you know when window functions are evaluated in a T-SQL query? Let's find out! More details Start now 0 of 23 exercises done 9. Window Functions: The Practice Field Master all the skills you've acquired so far with our practice set ...
It is a good practice to explicitly allow or prohibit NULL values. In our case we would prohibit NULL for FName. The following ALTER table statement would be used for that. --Script #5: Prohibit NULL values USE [AdventureWorks] GO
Change data from one data type to another in T-SQL Plus, you'll get to practice your skills on149 interactive exercises. Who Should Take This Course? Anyone who wants to learn about common SQL Server functions Data analysts who need to create complex reports ...
It's a good practice to standardize the collation that's used on systems across your organization, and to deploy Unicode servers and clients wherever possible.In many situations, SQL Server interacts with other servers or clients, and your organization might use multiple data-access standards ...
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Best Practice Specify a login or user that has the least privileges required to perform the operations in the session. For example, do not specify a login name with server-level permissions, if only database-level permissions are required; or do not specify a database owner account unless tho...
Describe the Execute SQL task. As a best practice, to make packages self-documenting and easier to maintain, describe the task in terms of its purpose. TimeOut Specify the maximum number of seconds the task will run before timing out. A value of 0 indicates an infinite time. The default ...