'Sql statement' diaporamas de présentation

Tuning

Tuning. SQL Trace Facility. Sono in grado di fornire informazioni preziose, per ogni statement SQL chiamato in causa, generando le seguenti statistiche attive: a livello di sessione (alter session set sql_trace = TRUE)

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Relational Databases

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Oracle PL/SQL

Oracle PL/SQL. PL/SQL. Originally modeled after ADA Created for Dept. of Defense Allows expanded functionality of database applications Continues to improve with each new database release. PL/SQL. Features Tight integration with SQL Supports data types, functions, pseudo-columns, etc.

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Manipulating Data

Manipulating Data. Objectives. After completing this lesson, you should be able to do the following: Describe each DML statement Insert rows into a table Update rows in a table Delete rows from a table Merge rows in a table Control transactions. Data Manipulation Language.

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DATA CUBE

DATA CUBE. DATA CUBE. Motivation Relational Data Extraction Few Extensions Group-by Fails CUBE ROLLUP. Motivation - Data Analysis. Look for unusual patterns in data. Visualization tools Should display data trends, clusters. N-dimensional space Allow Dimensionality reduction

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Demystifying the DB2 Dynamic Statement Cache

Demystifying the DB2 Dynamic Statement Cache. What Will We Talk About?. Some SQL Tuning Fundamentals Dynamic SQL in More Detail Introduction to DB2 Statement Caching Mining for Gold in the Global Statement Cache. DB2 Tuning - Where Should You Spend Your Time. What Can I tune in DB2

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IS 4420 Database Fundamentals Chapter 10: The Internet Database Environment Leon Chen

IS 4420 Database Fundamentals Chapter 10: The Internet Database Environment Leon Chen. Overview. Environment for Internet database connectivity Internet-based business environment Client-side and server-side extensions Web services and their use for e-commerce Explain ASP code

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Oracle10 g Developer: PL/SQL Programming

Oracle10 g Developer: PL/SQL Programming. Chapter 9. Database Triggers. Chapter Objectives. After completing this lesson, you should be able to understand: Database triggers and syntax How to create and test a DML trigger in SQL*Plus

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Chapter 13 Performing Flashback Recovery

Chapter 13 Performing Flashback Recovery. Background. One of the authors had extensive material on Flashback due to articles authored for OTN. Objectives. Flashback database Undrop a table Flash back a table 3 3. Three Flavors of Flashback. Flashing back a database Undropping a table

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Troubleshooting Performance

Troubleshooting Performance. Oracle Tutorials Luca Canali, Dawid Wojcik CERN, May 27 th , 2013. Outline. Part1 Introduction Get the design right Get the development processes Tuning by understanding The role of profiling Part2 Understanding execution plans Tools .

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EGL Overview

Stefano Sergi WW EM Solutions Manager IBM Rational software. EGL Overview. Customers are asking, can we.... . Leverage existing assets? Leverage modern architectures? Leverage existing skills and attract new skills? Leverage a common development environment for all development teams?

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Subqueries

11. Subqueries. Objectives. After completing this lesson, you should be able to do the following: Describe the types of problems that subqueries can solve Define subqueries List the types of subqueries Write single-row and multiple-row subqueries. Using a Subquery to Solve a Problem.

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SQL 101

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Database Project

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Agenda for Class 2/02/2006

Agenda for Class 2/02/2006. Finish discussing constraints generated with the CREATE TABLE statement. Discuss DROP statement. Discuss INSERT, COMMIT, DELETE, and UPDATE statements. Introduce SELECT statement. Discuss a few helpful SQLPlus commands. Do SQL class exercise.

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5 Reasons You Should Handle SQL Server Exceptions Using THROW Instead of RAISERROR

5 Reasons You Should Handle SQL Server Exceptions Using THROW Instead of RAISERROR. Presented by : Sifiso Ndlovu. 5 Reasons You Should Handle SQL Server Exceptions Using THROW Instead of RAISERROR. Less Lines Accurate Troubleshooting by Error Line Number

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Pengantar Keamanan Informasi

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