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Exam 70-461:
Querying Microsoft SQL Server 2012
Published: June 11, 2012
Language(s): English
Audience(s): IT Professionals
Technology: Microsoft SQL Server 2012
Type: Proctored Exam
Preparing for an Exam
The Microsoft Certification website and this preparation guide contain a variety of resources to help you prepare for an exam. Preparing for and Taking an Exam — FAQ provides answers to frequently asked questions about exam registration ,preparation ,scoring ,and policies , including:
The most effective way to prepare to take an exam.
The relationship between Microsoft training materials and exam content.
Microsoft policy concerning the incorporation of service pack and revision updates into exam content.
Exam question types and formats.
Exam time limits and number of questions asked.
We recommend that you review this preparation guide in its entirety and familiarize yourself with the FAQs and resources on the Microsoft Certification website before you schedule your exam.
Audience Profile
This exam is intended for SQL Server database administrators, implementers, system engineers, and developers. with two or more years of experience, who are seeking to prove their skills and knowledge in writing queries. Primary responsibilities may include but are not limited to:
Apply built-in scalar functions.
Apply ranking functions.
Combine datasets.
Create and alter DML triggers.
Create and alter indexes.
Create and alter stored procedures.
Create and alter tables.
Create and alter user-defined functions (UDFs).
Create and alter views.
Create and modify constraints.
Design T-SQL stored procedures.
Design views.
Implement aggregate queries.
Implement data types.
Implement error handling.
Implement subqueries.
Implement the sequence generator
Manage transactions.
Modify data by using INSERT, UPDATE, and DELETE statements.
Modify data by using MERGE statements.
Optimize queries.
Query and Manage XML data.
Query data by using SELECT statements.
Return data by using the OUTPUT clause.
Credit Toward Certification
Exam 70-461: Querying Microsoft SQL Server 2012: counts as credit toward the following certification(s):
MCSA: SQL Server 2012
MCSE: Data Platform
MCSE: Business Intelligence
This Training will Cover
This exam measures your ability to accomplish the technical tasks listed below.The percentages indicate the relative weight of each major topic area on the exam.The higher the percentage, the more questions you are likely to see on that content area on the exam.
The information after “This objective may include but is not limited to” is intended to further define or scope the objective by describing the types of skills and topics that may be tested for the objective. However, it is not an exhaustive list of skills and topics that could be included on the exam for a given skill area. You may be tested on other skills and topics related to the objective that are not explicitly listed here.
Create Database Objects (24%)
Create and alter tables using T-SQL syntax (simple statements).
May include but not limited to: create tables without using the built in tools; ALTER; DROP; ALTER COLUMN; CREATE
Create and alter views (simple statements).
May include but not limited to: create indexed views; create views without using the built in tools; CREATE, ALTER, DROP
Design views.
May include but not limited to: ensure code non regression by keeping consistent signature for procedure, views and function (interfaces); security implications
Create and modify constraints (simple statements).
May include but not limited to: create constraints on tables; define constraints; unique constraints; default constraints; primary and foreign key constraints
Create and alter DML triggers.
May include but not limited to: inserted and deleted tables; nested triggers; types of triggers; update functions; handle multiple rows in a session; performance implications of triggers
Work with Data (27%)
Query data by using SELECT statements.
May include but not limited to: use the ranking function to select top(X) rows for multiple categories in a single query; write and perform queries efficiently using the new (SQL 2005/8->) code items such as synonyms, and joins (except, intersect); implement logic which uses dynamic SQL and system metadata; write efficient, technically complex SQL queries, including all types of joins versus the use of derived tables; determine what code may or may not execute based on the tables provided; given a table with constraints, determine which statement set would load a table; use and understand different data access technologies; case versus isnull versus coalesce
Implement sub-queries.
May include but not limited to: identify problematic elements in query plans; pivot and unpivot; apply operator; cte statement; with statement
Implement data types.
May include but not limited to: use appropriate data; understand the uses and limitations of each data type; impact of GUID (newid, newsequentialid) on database performance,when to use what data type for columns
Implement aggregate queries.
May include but not limited to: new analytic functions; grouping sets; spatial aggregates; apply ranking functions
Query and manage XML data.
May include but not limited to: understand xml datatypes and their schemas and interop w/, limitations & restrictions; implement XML schemas and handling of XML data; XML data: how to handle it in SQL Server and when and when not to use it, including XML namespaces; import and export xml; xml indexing
Modify Data (24%)
Create and alter stored procedures (simple statements).
May include but not limited to: write a stored procedure to meet a given set of requirements; branching logic; create stored procedures and other programmatic objects; techniques for developing stored procedures; different types of storeproc result; create stored procedure for data access layer; program stored procedures, triggers, functions with T-SQL
Modify data by using INSERT, UPDATE, and DELETE statements.
May include but not limited to: given a set of code with defaults, constraints, and triggers, determine the output of a set of DDL; know which SQL statements are best to solve common requirements; use output statement
Combine datasets.
May include but not limited to: difference between UNION and UNION all; case versus isnull versus coalesce; modify data by using MERGE statements
Work with functions.
May include but not limited to: understand deterministic, non-deterministic functions; scalar and table values; apply built-in scalar functions; create and alter user-defined functions (UDFs)
Troubleshoot & Optimize (25%)
Optimize queries.
May include but not limited to: understand statistics; read query plans; plan guides; DMVs; hints; statistics IO; dynamic vs. parameterized queries; describe the different join types (HASH, MERGE, LOOP) and describe the scenarios they would be used
Manage transactions.
May include but not limited to: mark a transaction; understand begin tran, commit, and rollback; implicit vs explicit transactions; isolation levels; scope and type of locks; trancount
Evaluate the use of row-based operations vs. set-based operations.
May include but not limited to: when to use cursors; impact of scalar UDFs; combine multiple DML operations
Implement error handling.
May include but not limited to: implement try/catch/throw; use set based rather than row based logic; transaction management
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