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Microsoft 70-461 Exam

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Querying Microsoft SQL Server 2012

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Microsoft exam 70-461 test name: Querying Microsoft SQL Server 2012 Published:

June 11, 2012

Language(s): English Audience(s): IT Professionals Technology: Microsoft SQL Server 2012 Type:

Proctored Exam

test 70-461 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.

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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.

Microsoft exam 70-461 test related 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

Microsoft test 70-461 exam topics and skills Being Measured 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

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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

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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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