A Guide to SQL
A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
bartleby

Concept explainers

Question
Book Icon
Chapter 6, Problem 4RQ
Program Plan Intro

SQL:

  • SQL stands for “Structured Query Language”.
  • The current version of SQL is “ANSI SQL – 92”.
  • SQL is not a programming language. It is text-based and it is also called as data sublanguage.
    • In order to get SQL as a complete programming language, it should be included in scripting languages like Java, C#, and so on.
  • It contains constructs which are used to define and process database. They are executed using DBMS-supplied command prompt.
  • Some of the DBMS products provide GUI tools in order to perform tasks are as follows:
    • SQL Server
    • Oracle Database
    • MySQL

Data Manipulation Language (DML):

  • This is used for manipulation like, querying, inserting, updating, and deleting data.

Blurred answer
Students have asked these similar questions
Question D.4: FIFO Page Replacement Consider the following page reference string: e, c, b, e, a, g, d, c, e, g, d, a Considering 4 frames, fill in the following table and then answer how many page faults would occur with the FIFO page replacement algorithm. RS: reference string; FO: frame 0, F1: frame 1, etc. Hint: all frames are initially empty, so your first unique pages will all cost one fault each. Time 1234567891011 12 RS e cb e agd ce g d a FO F1 F2 F3 Page fault? b) Total # page faults: c) Briefly (1-2 sentences) explain Belady's Anomaly that can occur in FIFO Page Replacement.
Consider a system that uses a fixed-partition scheme, with equal partitions of size 2" bytes, and the main memory has 2¹8 bytes. A process table is maintained with a pointer to the resident partition for each resident process. How many bits are required for the pointer in the process table? Show all your steps.
Use the same semaphore notation shown above to describe how we can ensure the execution order of the following process execution graph: P6 P2 P7 P1 P3 P4 P5 Use all of the following semaphores in your answer: s1=0; s2=0; s3=0; s4=0; s5=0; s6=0;
Knowledge Booster
Background pattern image
Computer Science
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
  • Text book image
    Oracle 12c: SQL
    Computer Science
    ISBN:9781305251038
    Author:Joan Casteel
    Publisher:Cengage Learning
    Text book image
    A Guide to SQL
    Computer Science
    ISBN:9781111527273
    Author:Philip J. Pratt
    Publisher:Course Technology Ptr
    Text book image
    CMPTR
    Computer Science
    ISBN:9781337681872
    Author:PINARD
    Publisher:Cengage
  • Text book image
    Database Systems: Design, Implementation, & Manag...
    Computer Science
    ISBN:9781305627482
    Author:Carlos Coronel, Steven Morris
    Publisher:Cengage Learning
    Text book image
    Database Systems: Design, Implementation, & Manag...
    Computer Science
    ISBN:9781285196145
    Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
    Publisher:Cengage Learning
Text book image
Oracle 12c: SQL
Computer Science
ISBN:9781305251038
Author:Joan Casteel
Publisher:Cengage Learning
Text book image
A Guide to SQL
Computer Science
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Course Technology Ptr
Text book image
CMPTR
Computer Science
ISBN:9781337681872
Author:PINARD
Publisher:Cengage
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning