SQL

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SQL

SQL. SQL. SQL is a high-level language, in which the programmer is able to avoid specifying a lot of data-manipulation details that would be necessary in languages like C++. What makes SQL viable is that its queries are “optimized” quite well, yielding efficient query executions.

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SQL Within PL / SQL

SQL Within PL / SQL. Chapter 4. SQL Within PL / SQL. SQL Statements DML in PL / SQL Pseudocolums Transaction Control . SQL Statements Using SQL in PL / SQL. The only SQL statements allowed in PL/SQL are: DML (data manipulation language) transaction control

697 views • 28 slides

SQL

SQL. More than 100 DBMS support SQL Used by DBAs and application programmers Structured Query Language or SEQUEL ORACLE-> relation database based on SQL Standard database language SQL Reserved Words To retrieve data insert, update and delete SQL and QBE

455 views • 41 slides

Transact SQL (T-SQL)

Transact SQL (T-SQL). Creating Stored Procedures, Functions and Triggers. Svetlin Nakov. Telerik Software Academy. http://academy.telerik.com. Manager Technical Training. www.nakov.com. Table of Contents. Transact-SQL Programming Language Data Definition Language Data Control Language

904 views • 57 slides

SQL

SQL. The questing beast Sir Thomas Mallory. SQL. A standard ANSI ISO SQL skills are in demand Developed by IBM Object-oriented extensions created. SQL. A complete database language Data definition Definition of tables and views Data manipulation Specifying queries

1.06k views • 66 slides

SQL & ADVANCED SQL

SQL & ADVANCED SQL. Marcin Blaszczyk (CERN IT-DB) m arcin.blaszczyk@cern.ch. agenda. Goal of this tutorial: Present the overview of basic SQL capabilities Explain several selected advanced SQL features Outline Introduction SQL basics Joins & Complex queries

1.08k views • 68 slides

SQL

SQL. Baze podataka. SQL ( Structured Query Language). SQL je sruktuirani upitni jezik koji omogućava pristup podacima u sistemima za upravljanje relacionim bazama podataka ( MySQL , Oracle, Microsoft SQL server i drugi ) Korisnici mogu da : d efinišu šemu baz e podataka ,

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SQL

SQL. Chapters 2 – 13, 18. Agenda. Retrieving Data Sorting Data Filtering Retrieved Data Combining filters Wildcard filters Creating Calculated Fields Using Functions Grouping Data Filtering groups Accessing Data from Multiple Tables Subqueries Joins Creating Data Views. review.

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SQL

SQL. SQL -- historical Perspective. Developed by IBM in mid 70s First standardized in 1986 by ANSI --- SQL1 Revised in 1992 ---SQL2. Approx 580 page document describing syntax and semantics Efforts for SQL3 underway. Many additions for: support for multimedia data

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SQL

SQL. SEQUEL , Structured English Query Language : SQL ANSI, ISO: SQL86, SQL89, SQL92. Alap (entry), közbenső (intermediate), teljes (full) szint. A DDL nyelvi komponens sel létrehozhatók és módosíthatók a különböző relációk, domainek és integritási feltételek.

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SQL

SQL. standardisierte Datendefinitions (DDL)- Datenmanipulations (DML)- Anfrage (Query)-Sprache derzeit aktueller Standard ist SQL 99 und SQL3 (2003) objektrelationale Erweiterung

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SQL

SQL. S tructured Q uery L anguage.

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SQL/PL SQL

SQL/PL SQL. Quiz 2. Q1.Create a table called "Persons" that contains five columns: PersonID , LastName , FirstName , Address, and City with Person ID Primary Key  Q2. Insert a record in the "Persons Table" from another table PersonBackup same structure as Person Table. 

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SQL/PL SQL

SQL/PL SQL. Performance Tuning. Indexes ROWID View Sequences. Performance Tuning. Indexing a table is an access strategy, that is a way to sort and search records in the table. Indexes are essential to improve the speed with which records can be located and retrieved from a table.

371 views • 8 slides

Transact SQL (T-SQL)

Transact SQL (T-SQL). Creating Stored Procedures, Functions and Triggers. Databases. Telerik Software Academy. http://academy.telerik.com. Table of Contents. Transact-SQL Programming Language Data Definition Language Data Control Language Data Manipulation Language Syntax Elements

2.06k views • 57 slides

MY SQL SQL PL/SQL

MY SQL SQL PL/SQL. 1- MY SQL. مقدمة. ماي إس كيو إل وتلفظ أحيانا ماي سيكويل ( بالإنجليزية : MySQL) هو نظام إدارة قواعد البيانات علائقي يعتمد التعامل معه على لغة إس كيو إل . وسمي بهذا الاسم تبعا لابنة مبرمجه الأصلي Michael Widenius، والتي اسمها My.

900 views • 37 slides

SQL

SQL. April 22 th , 2002. Agenda. Union, intersections Sub-queries Modifying the database Views Modifying views Reusing views. Union, Intersection, Difference. ( SELECT name FROM Person WHERE City=“Seattle”) UNION ( SELECT name FROM Person, Purchase

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SQL

SQL. This presentation will cover: A Brief History of DBMS View in database MySQL installation. SQL – DBMS History. DBMS History The IBM’s System/R was not the first DBMS. The first to market was Relational Software's product named Oracle The second was Relational Technology's Ingres.

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SQL

SQL. 1. OBJECTIVES. What is SQL? Types of SQL commands and their function Query Index Views Synonyms Database transactions. 2. SQL . Sequential Query Language Used for authenticating,accessing, manipulating of data from database. 3.

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SQL

SQL. Lec-7. The IN Operator The IN operator allows you to specify multiple values in a WHERE clause. SQL IN Syntax SELECT  column_name(s) FROM  table_name WHERE  column_name  IN ( value1 , value2 ,...); Below is a selection from the "Customers" table:. IN Operator Example

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SQL

SQL. Reminder of SQL. Subsets of language. Data definition language (DDL) Domain definition Schema definition Constraint definition View definition Access right definition Data manipulation language (DML) Queries Tuple insertion Tuple deletion Tuple modification. DDL.

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