0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How does SQL allow implementation of the entity integrity and referencial integrity constraints what about general integrity constraints?
sql allow their implementation using various sql commands
What prequisites do I need before taking advanced SQL training?
A course entitled SQL Server Implementation and Design or equivalent training.
Where online can one find information about SQL inner joins?
Information about SQL inner joins can be found on several sights. The best place if you are looking for something specific would be on a blog. W3schools, Tutorials Point, Tech on the Net, and Wikipedia has basic information.
Will SQL training teach me how to use the INNER JOIN command?
SQL is a mostly standard language that allows for analysis and presentation of data stored in a database. The INNER JOIN command is one of the basic SQL commands. SQL training will teach you how to use this command, as well as the commands that result in other types of joins, like outer joins, left outer joins, etc. The best SQL training sources will present you with a simple set of raw data and examples of the result sets generated from each type of query. Be aware that there are several similar versions of SQL that vary with each target database (SQL Server, DB2, etc.) so be sure that the training you sign up for is specific to the database that you intend to use.
What is sql-3?
SQL-3 is short for Structured Query Language Level 3, which is a standard that defines the syntax and semantics of SQL queries. It includes features like advanced outer joins, enhanced data manipulation capabilities, and support for recursive queries. SQL-3 builds upon SQL-92 and provides more advanced functionality for managing databases.
List two reasons why null values might be introducedin database?
1. special requirements for its use in SQL joins. 2. special handling required by aggregate functions and SQL grouping operators
What has the author Louis Davidson written?
Louis. Davidson has written: 'Pro SQL Server 2005 Database Design and Optimization' 'Pro SQL server 2008 relational database design and implementation' -- subject(s): Client/server computing, SQL server 'Pro SQL Server 2005' 'SQL Server 2000 Stored Procedures Handbook (Expert's Voice)'
Advantages of sql joins?
The main advantage of a join is that it executes faster. The performance increase might not be noticeable by the end user. However, because the columns are specifically named and indexed and optimized by the database engine, the retrieval time almost always will be faster than that of a subquery. There are also inner and outer joins, left and right joins, full joins and cross joins.
Is SQL an open source software or open access software?
SQL is not software in the sense that you can run it as a stand-alone program. SQL stands for Structured Query Language and is that a language for querying relational databases. It was originally developed at IBM and became the de facto standard relational database query language in the 1980s.In order to execute (run) SQL queries against a database, you need an implementation that can interpret the SQL statement and return the data as specified from your data store. Also, Open Access as a concept does not apply to software. See related links for details.
Who or what is responsible for maintaining database consistency?
The RDBMS (Relational Database Management System) is responsible for the control of the database however it requires appropriate planning and implementation of your design in order for this to work properly. Further proper maintenance of the Database environment is critical to its on-going operation. In short proper design by the database architect followed by proper implementation of this design by the DBA or SQL Developer coupled with proper SQL environment deployment is responsible for the healthy operation of a RDBMS.
Difference between SQL plus and ISQL plus?
SQLPlus is a command-line interface program used to access and manage Oracle databases, while iSQLPlus is a web-based version of SQLPlus that allows users to access Oracle databases through a web browser. iSQLPlus provides a more user-friendly interface compared to the command-line SQL*Plus.
Where could someone find an SQL formatter?
One can find an SQL formatter from: SQL Format, Free Formatter, Poor SQL, T-SQL Tidy, Stack Overflow, SQL Inform, Apex SQL, SQL Parser, Red Gate software, to name a few.
