Passed 70-461 Exam : Querying Microsoft SQL Server 2012
Yesterday (Nov 15th 2012) I went through this exam and passed it. From long back I was looking an opportunity to give at least a single SQL Server Certification Exam to check my worth.
Just a week back I scheduled a slot for this Exam (for yesterday). I was looking for some reading material for the same but I couldn’t get any. Though there is a book from Microsoft Press i.e. “Training Kit (Exam 70-461): Querying Microsoft SQL Server 2012″, but it was not available at my nearest.
As I maintain this blog on SQL Server and also evangelize on SQL Server 2012 latest features from long back, so I thought to give it a try and wow I went thru in a single shot!!!
Here by this post I want to provide my readers some information and knowledge about this Exam, so that they can plan well for this and look forward to take up this exam.
–> Exam Highlights:
- There were total 54 Questions
- Total time to attempt the paper was 3 Hrs.
- Total Marks: 1000
- Passing Marks: 700
- The Questions in the Exam were:
1. Mostly Objective Type.
2. Some were Subjective: where you’ve to write code, like SELECT statement and/or View Definition, etc.
3. And very few were Multiple Choice.
4. A few Question were where you’ve to pick up the appropriate code snippet and arrange them in correct sequence.
–> The Exam is divided into 4 modules:
1. Create Database Objects
2. Work with Data
3. Modify Data
4. Troubleshoot & Optimize
You need to brush up on following Skills in the these Modules:
-:Check links with the below items for more information:-
–> Create Database Objects | 24%
- CREATE/ALTER/DROP TABLE/COLUMN
- Data Types (XML, DATETIME, SPATIAL, VARCHAR)
- Constraints (Primary Key, Foreign Key, Unique, Check, Default)
- Calculated Column
- Indexed Views (SCHEMABINDING, COUNT_BIG(*), CLUSTERED INDEX)
- Stored Procedures, [link].
- DML Triggers (INSERTED, UPDATED, UPDATE function) vs CHECK Constraint
- TRIGGER for VIEWS (INSTEAD OF)
- UDF (Functions), [link].
- SP vs UDF, [link].
–> Work with Data | 27%
- New Functions in SQL Server 2012 (IFF, TRY_PARSE, CONCAT, FORMAT), [link].
- FETCH-OFFSET, [link].
- SEQUENCE, [link].
- Ranking and Window Functions (ROW_NUMBER, RANK, DENSE_RANK, NTILE), [link].
- JOINS (INNER, OUTER LEFT, OUTER RIGHT, CROSS), [link].
- APPLY Operators (CROSS APPLY vs OUTER APPLY), [link].
- CTE and Sub-Queries, [link].
- PIVOT, [link].
- ROLLUP, CUBE & GROUPING SETS, [link].
- Dynamic SQL
- ANY, SOME, ALL
- CASE vs ISNULL vs COALESCE, [link].
- FOR XML RAW/AUTO/PATH [ELEMENTS], [link].
- Implementing XML Schemas and Handling of XML data
–> Modify Data | 24%
- Stored Procedure (with EXECUTE AS, RECOMPILE)
- MERGE Statement (TARGET, SOURCE, WHEN MATCHED, WHEN NOT MATCHED, OUTPUT), [link].
- EXCEPT vs INTERSECT
- UNION vs UNION ALL, [link].
- SCALAR vs TABLE Valued Functions.
- Use of APPLY with UDFs, [link].
- VARCHAR(MAX) and .WRITE(), [link].
–> Troubleshoot & Optimize | 25%
- Using Statistics
- SQL Internal JOINS (NESTED – Small, MERGE – Large Sorter, HASH – Large Unsorted), [link].
- TRANSACTIONS (BEGIN, COMMIT, ROLLBACK, XACT_ABORT, TRANCOUNT), [link].
- ISOLATION Levels (READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, SNAPSHOT, SERIALIZABLE)
- TRY/CATCH, [link].
- RAISE vs THROW [link]
- CURSORS (Row-Based) vs SET Based Approach
- Table Hints (UPDLOCK, ROWLOCK, TABLOCK, …etc)
- Query Hints (OPTION (OPTIMIZED FOR … [UNKNOWN]))
–> You can visit following Study materials to prepare for this Exam:
Microsoft Link for this Certification: http://www.microsoft.com/learning/en/us/exam.aspx?id=70-461
Book “Training Kit (Exam 70-461): Querying Microsoft SQL Server 2012″ on AMAZON.com: http://www.amazon.com/Training-Kit-Exam-70-461-Microsoft/dp/0735666059?tag=651998669-20
Book “Microsoft SQL Server 2012 T-SQL Fundamentals” on AMAZON.com: http://www.amazon.com/Microsoft-Server-2012-T-SQL-Fundamentals/dp/0735658145/ref=sr_1_3&tag=651998669-20
All The Best!!!
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