'Sal' diaporamas de présentation

Activism through Commensality: Food and Politics in the Temporary Vegan Zone

1.31k views • 119 slides

L3: DDBS Design (Tailored from the Slides by Prof. Hector Garcia-Molina )

906 views • 71 slides

Creating Stored Procedures and Functions

Creating Stored Procedures and Functions. Objectives. After completing this lesson, you should be able to do the following: Differentiate between anonymous blocks and subprograms Create a simple procedure and invoke it from an anonymous block Create a simple function

736 views • 54 slides

Distributed Databases architecture, fragmentation, allocation

Distributed Databases architecture, fragmentation, allocation. Lecture 1. Application SQL Front End Query Processor Transaction Proc. File Access. Centralized DBMS. Software:. P. M. Simplifications: single front end one place to keep locks

439 views • 42 slides

Aggregating Data Using Group Functions

Aggregating Data Using Group Functions. What Are Group Functions?. EMP. Group functions operate on sets of rows to give one result per group. DEPTNO SAL --------- --------- 10 2450 10 5000 10 1300 20 800 20 1100

443 views • 31 slides

The Optimizer

The Optimizer. How ORACLE optimizes SQL statements. David Konopnicky 1997, Revised by Mordo Shalom 2004. What is optimization?. Whenever a DML statement is issued, ORACLE must determine how to execute it. There may be different ways to execute the statement.

315 views • 31 slides

Walk Two Moons

796 views • 30 slides

Writing Basic SELECT Statements

Writing Basic SELECT Statements. Capabilities of SQL SELECT Statements. Projection. Selection. Table 1. Table 1. Join. Table 2. Table 1. Basic SELECT Statement. SELECT identifies what columns. FROM identifies which table. SELECT [DISTINCT] {*, column [ alias ],...} FROM table;.

332 views • 22 slides

SELECT Statements

SELECT Statements. Lecture Notes Sree Nilakanta Fall 2010 (rev). SELECT Statements. Retrieve data from one or more tables, object tables, views, object views, or snapshots Must have SELECT privilege Examples. Examples.

311 views • 20 slides

??????????????

??????????????. ????????????? ???. ?????????????. RDBMS ????? ????? ????? ???????? ?? Constraint NULL/NOT NULL Unique Primary Key Foreign Key References check. ? 1. create table customers (cid char(4) not null, cname varchar(13), city varchar(20),

394 views • 17 slides

Lecture 26: Query Optimization

Lecture 26: Query Optimization. Wednesday, December 1st, 2004. Outline. Query optimization: algebraic laws 16.2. The three components of an optimizer. We need three things in an optimizer: Algebraic laws (today) An optimization algorithm (Friday) A cost estimator (Monday++).

259 views • 16 slides

Walk Two Moons

Walk Two Moons. Chapters 29-40. Questions over Chapters 29-32. 1 . Why does Sal find the poem "The Tide Rises, the Tide Falls" by Longfellow so upsetting? How does Ben feel about it? 2. In what way does Sal think she and Phoebe are alike?

414 views • 14 slides

Implementing tides and self-attraction and loading effects in ECCO estimates

Implementing tides and self-attraction and loading effects in ECCO estimates. Rui M. Ponte Atmospheric and Environmental Research, Inc. Lexington, Massachusetts w/ Ayan Chaudhuri, Nadya Vinogradova, Katy Quinn, Sergey Vinogradov @AER and the ECCO group @MIT & JPL

148 views • 12 slides

396 views • 6 slides

Walk Two Moons

Walk Two Moons. Chapters 29-40. Questions over Chapters 29-32. 1 . Why does Sal find the poem "The Tide Rises, the Tide Falls" by Longfellow so upsetting? How does Ben feel about it? 2. In what way does Sal think she and Phoebe are alike?

263 views • 5 slides

Walk Two Moons

Walk Two Moons. Chapters 29-40. Questions over Chapters 29-32. 1 . Why does Sal find the poem "The Tide Rises, the Tide Falls" by Longfellow so upsetting? How does Ben feel about it? 2. In what way does Sal think she and Phoebe are alike?

430 views • 5 slides

Walk Two Moons By Sharon Creech

Walk Two Moons By Sharon Creech

509 views • 1 slides

Recent Field Experiments: CAMEX-3 & 4, IHOP

Investigation of High Resolution Water Vapor and Aerosol Distributions in Tropical Cyclone Development During the NAMMA Field Experiment. Edward Browell, LaRC (PI); Syed Ismail, LaRC (Co-PI); Richard Ferrare, LaRC (Co-I); T. N. Krishnamurti, FSU (Co-I); Jason Dunion, NOAA/U Miami (Co-I).

100 views • 1 slides

159 views • 1 slides