Oracle Certified Associate (OCA) Certification

Analytic SQL Training in Chennai for Data Warehouse Developers

Grouping and Aggregating Data Using SQL

• Generating Reports by Grouping Related Data
• Review of Group Functions
• Reviewing GROUP BY and HAVING Clause
• Using the ROLLUP and CUBE Operators
• Using the GROUPING Function
• Working with GROUPING SET Operators and Composite Columns
• Using Concatenated Groupings with Example

Hierarchical Retrieval

• Using Hierarchical Queries
• Sample Data from the EMPLOYEES Table
• Natural Tree Structure
• Hierarchical Queries: Syntax
• Walking the Tree: Specifying the Starting Point
• Walking the Tree: Specifying the Direction of the Query
• Using the WITH Clause
• Hierarchical Query Example: Using the CONNECT BY Clause

Working with Regular Expressions

• Introducing Regular Expressions
• Using the Regular Expressions Functions and Conditions in SQL and PL/SQL
• Introducing Metacharacters
• Using Metacharacters with Regular Expressions
• Regular Expressions Functions and Conditions: Syntax
• Performing a Basic Search Using the REGEXP_LIKE Condition
• Finding Patterns Using the REGEXP_INSTR Function
• Extracting Substrings Using the REGEXP_SUBSTR Function

Analyzing and Reporting Data Using SQL

• Overview of SQL for Analysis and Reporting Functions
• Using Analytic Functions
• Using the Ranking Functions
• Using Reporting Functions

Performing Pivoting and Unpivoting Operations

• Performing Pivoting Operations
• Using the PIVOT and UNPIVOT Clauses
• Pivoting on the QUARTER Column: Conceptual Example
• Performing Unpivoting Operations
• Using the UNPIVOT Clause Columns in an UNPIVOT Operation
• Creating a New Pivot Table: Example

Pattern Matching using SQL

• Row Pattern Navigation Operations
• Handling Empty Matches or Unmatched Rows
• Excluding Portions of the Pattern from the Output
• Expressing All Permutations
• Rules and Restrictions in Pattern Matching
• Examples of Pattern Matching

Modeling Data Using SQL

• Using the MODEL clause
• Demonstrating Cell and Range References
• Using the CV Function
• Using FOR Construct with IN List Operator, incremental values and Subqueries
• Using Analytic Functions in the SQL MODEL Clause
• Distinguishing Missing Cells from NULLs
• Using the UPDATE, UPSERT and UPSERT ALL Options
• Reference Models

SQL Statement Tuning Training In Chennai Course Content

Exploring the Oracle Database Architecture

• Describe the major architectural components of Oracle Database server
• Explain memory structures
• Describe background processes
• Correlate logical and physical storage structures

Introduction to SQL Tuning

• Describe what attributes of a SQL statement can make it perform poorly
• Describe the Oracle tools that can be used to tune SQL
• Explain the tuning tasks

Introduction to the Optimizer

• Describe the execution steps of a SQL statement
• Explain the need for an optimizer
• Explain the various phases of optimization
• Control the behavior of the optimizer

Interpreting Execution Plans

• Gather execution plans
• Display execution plans, display xplan
• Interpret execution plans

Application Tracing

• Configure the SQL Trace facility to collect session statistics
• Use the trcsess utility to consolidate SQL trace files
• Format trace files using the tkprof utility
• Interpret the output of the tkprof command