'Read consistency' presentation slideshows

Data Manipulation Language (DML) and Transaction Control

Data Manipulation Language (DML) and Transaction Control. Database Management Systems 1. Objectives. Define terms Describe each data manipulation language (DML) statement Insert, update, and delete data Write single table queries using SQL SELECT command

706 views • 48 slides

Manipulating Data

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

498 views • 39 slides

Manipulating Data

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

398 views • 39 slides

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.

444 views • 37 slides

538 views • 35 slides

Managing Rollback Segments

Managing Rollback Segments. Objectives. Planning the number and size of rollback segments Creating rollback segments using appropriate storage settings Maintaining rollback segments Obtaining rollback segment information from the data dictionary Troubleshooting rollback segment problems.

522 views • 34 slides

Transaction control and isolation levels in Oracle

Transaction control and isolation levels in Oracle. Evgeniya Kotzeva. Vereo Technologies www.vereo.bg. academy . devbg . org. www.devbg.org. Contents. Transaction control Data Concurrency and Consistency in a Multiuser Environment Locking. Database Transaction.

668 views • 31 slides

Data Concurrency

Data Concurrency. David Konopnicki 1997 Revised by Mordo Shalom 2004. Agenda. Data concurrency, integrity and consistency The automatic locking mechanism in ORACLE Explicit (manual) locking ORACLE lock management services. What are concurrency and consistency.

432 views • 28 slides

Manipulating Data: INSERT, UPDATE, DELETE

Manipulating Data: INSERT, UPDATE, DELETE. Data Manipulation Language. A DML statement is executed when you: Add new rows to a table Modify existing rows in a table Remove existing rows from a table A transaction consists of a collection of DML statements that form a logical unit of work.

334 views • 20 slides