Microsoft MCSA 70-461 Querying Microsoft SQL Server Test

Microsoft MCSA 70-461 Querying Microsoft SQL Server Test

Microsoft MCSA 70-461 Querying Microsoft SQL Server Test. With the help of this course you can Pass Microsoft MCSA 70-461 Exam Querying Microsoft SQL Server 2012/2014 from your first attempt..

This course was created by Ucertified 33 & 000+ Students 40 Courses. It was rated 4.3 out of 5 by approx 1319 ratings. There are approx 40143 users enrolled with this course, so don’t wait to download yours now. This course also includes 2 Practice Tests, Full lifetime access & Access on mobile.

Create database objects (20–25%)

  • Create and alter tables using T-SQL syntax (simple statements)
    • Create tables without using the built in tools; ALTER; DROP; ALTER COLUMN; CREATE
  • Create and alter views (simple statements)
    • Create indexed views; create views without using the built in tools; CREATE, ALTER, DROP
  • Design views
    • Ensure code non regression by keeping consistent signature for procedure, views and function (interfaces); security implications
  • Create and modify constraints (simple statements)
    • Create constraints on tables; define constraints; unique constraints; default constraints; primary and foreign key constraints
  • Create and alter DML triggers
    • Inserted and deleted tables; nested triggers; types of triggers; update functions; handle multiple rows in a session; performance implications of triggers

Work with data (25–30%)

  • Query data by using SELECT statements
    • 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
    • Identify problematic elements in query plans; pivot and unpivot; apply operator; cte statement; with statement
  • Implement data types
    • 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
    • New analytic functions; grouping sets; spatial aggregates; apply ranking functions
  • Query and manage XML data
    • Understand XML datatypes and their schemas and interop w/, limitations and 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 (20–25%)

  • Create and alter stored procedures (simple statements)
    • 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
    • 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
    • Difference between UNION and UNION all; case versus isnull versus coalesce; modify data by using MERGE statements
  • Work with functions
    • Understand deterministic, non-deterministic functions; scalar and table values; apply built-in scalar functions; create and alter user-defined functions (UDFs)

Troubleshoot and optimize (25–30%)

  • Optimize queries
    • 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 in
  • Manage transactions
    • 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
    • When to use cursors; impact of scalar UDFs; combine multiple DML operations
  • Implement error handling
    • Implement try/catch/throw; use set based rather than row based logic; transaction management
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