'Select count' diaporamas de présentation

Chapter 4: SQL

Chapter 4: SQL. Basic Structure Set Operations Aggregate Functions Null Values Nested Subqueries Derived Relations Views Modification of the Database Joined Relations Data Definition Language Embedded SQL, ODBC and JDBC. Schema Used in Examples. Basic Structure .

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Library Cache Internals

Library Cache Internals. Julian Dyke Independent Consultant. Web Version. juliandyke.com. Introduction Multiple Parent Cursors Multiple Child Cursors DBMS_SHARED_POOL Summary. Agenda. Shared Pool. Shared pool includes: Permanent - Static structures - allocated at startup

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More SQL

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MySQL Indexing

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MarketShare Big Data Analytics

MarketShare Big Data Analytics. An Big Data Analytics architecture for the cloud. With and Without Buzzwords. Big Data analytics on the Cloud. >50 TB analytics pipeline on Amazon Web Services using Hadoop. MarketShare : Big Data Analytics on the Cloud. Cloud architecture evolution

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Batched Key Access: a significant Speed-up for Join Queries

Batched Key Access: a significant Speed-up for Join Queries. Igor Babaev igor@mysql.com. Getting Started BKA: Inroduction. Where to find the stuff (source, binaries)? http://forge.mysql.com/wiki/Batched_Key_Access Cloned from mysql-6.0-ndb that is currently in sync with mysql-6.0

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Final Presentation

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SQL : Query Language

SQL : Query Language. Part II. Sorting: ORDER BY clause. SELECT * FROM Student WHERE sNumber >= 1 ORDER BY sNumber, sName. ? (sNumber, sName) (? (sNumber >= 1) (Student)). Subqueries. Subquery returns a relation Nest subqueries into WHERE clause Nest subqueries into FROM clause.

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Tipos de Segmentos

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SQL: Constraints, Triggers, Embedded SQL

SQL: Constraints, Triggers, Embedded SQL. Chapters: 5, 6. Overview. Concepts covered in this lecture: Constraints Triggers SQL in application code Embedded SQL Cursors Dynamic SQL Stored procedures. Integrity Constraints (Review).

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How to work with Pivot Tables

How to work with Pivot Tables . Step by step instruction. Click the first cell in the first row and column of data. Now click insert . Click on PivotTable.

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Database Management Summer 2003 The single entity, the single table, plus some basic SQL June 25

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SQL Constraints and Triggers

SQL Constraints and Triggers. General Constraints. Attribute-based CHECK defined in the declaration of an attribute, activated on insertion to the corresponding table or update of attribute. Tuple-based CHECK defined in the declaration of a table,

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Misc. Announcements

Misc. Announcements Pre-Test2 (with past test questions!) and Final Milestone are posted! Which teams to go first? 2 options Any volunteers for the first meeting day next week? We need at least two!

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S tructured Q uery L anguage - SQL

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