'Null value' diaporamas de présentation

SQL:-

SQL:-. SQL:-SQL is a standard computer language for accessing and manipulating databases. and manipulate data in Oracle, Sybase, SQL Server, DB2, Access, and other database systems. What is SQL?:- SQL stands for S tructured Q uery L anguage SQL allows you to access a database

1.17k views • 87 slides

Logistic Regression I

856 views • 60 slides

Tutorial 5 Creating Advanced Queries and Enhancing Table Design

Tutorial 5 Creating Advanced Queries and Enhancing Table Design. Objectives. Session 5.1 Review object naming standards Use the Like, In, Not, and & operators in queries Filter data using an AutoFilter

729 views • 56 slides

Java 8 Stream API

Java 8 Stream API. Raj Thavamani Application Developer / Java Group Biomedical Informatics . Outline. Stream Building Blocks Java 8 Default Methods Functional Interfaces Lambda Expressions Method References. Outline. Characteristics of Streams Creating Streams

3.05k views • 45 slides

MUCH ADO ABOUT NOTHING

MUCH ADO ABOUT NOTHING. Walter Schenk SoluTech Consulting Services Inc. AGENDA. What it is and what is not NULL in functions, expressions, comparisons and conditional control NULL in Indexes NULL in programming languages. WHAT A NULL IS NOT!. A NULL is NOT 0! A NULL is NOT Nothing!

597 views • 40 slides

Normal Distributions 2/27/12

Normal Distributions 2/27/12. Normal Distribution Central Limit Theorem Normal distributions for confidence intervals Normal distributions for p-values Standard Normal Corresponding Sections: 5.1, 5.2. Exam 1 Grades. Bootstrap and Randomization Distributions.

665 views • 38 slides

Lecture 15

Lecture 15 What will I learn in this lecture? Know how to declare arrays, access elements of an array. Understand how character arrays can represent strings. Use compact C notation such as assignment operators or the increment and decrement operators . Two dimensional arrays

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Unix Comp-145

536 views • 30 slides

JAVA P rogramming B asic

JAVA P rogramming B asic. Chapter 2. Chapter 2. 2.0 Java Programming Basic 2.1 Structured language vs OOP language 2.2 Introduction to JAVA Application 2.3 Data Types 2.4 Control Structures 2.5 Array 2.6 Packages. Structured language vs OOP language. Structured language.

418 views • 30 slides

Key/Value Stores

378 views • 28 slides

INSERT Statement

INSERT Statement. What Will I Learn?. Give examples of why it is important to be able to alter the data in a database Construct and execute INSERT statements which insert a single row using a VALUES clause

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Learn 2 Salesforce

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Lectures 19 & 20

Lectures 19 & 20. What will I learn in this lecture?. Know how to declare pointer variables. Understand the & (address) and *(indirection) operators. Dynamic Memory Allocation Related Chapter: FER Chapter 12.1, 12.2, 19.1,20. Pointers.

676 views • 23 slides

Relational Data Model

Relational Data Model. Relational Database Terminologies. Relation is a table with columns and rows Attribute ? named column of a relation Domain? set of allowable values for one or more attributes . Each attribute has values taken from a domain .

298 views • 21 slides

NULL Functions

NULL Functions. What Will I Learn?. Nested function List at least four general functions that work with any data type and relate to handling null values NVL, NVL2, NULLIF, and COALESCE. Why Learn It?.

370 views • 17 slides

Structured query language

Structured query language. This is a presentation by JOSEPH ESTRada on the beauty of Structured Query Language. So, what is SQL you ask?. Language designed for the retrieval and management of data. Standard Data Manipulation Language(DML).

553 views • 16 slides

Linked Lists

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Linked Lists

261 views • 15 slides

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Mapping ER to Relational Model

Mapping ER to Relational Model. Each strong entity set becomes a table. Each weak entity set also becomes a table by adding primary key of owner entity set. To create a table for an entity set: Non-composite, single-valued attributes become attributes of the table.

179 views • 6 slides