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Wiki User
∙ 14y ago
In SQL, a relationship refers to how data in different database tables relate to each other. The relationships are typically defined using keys (primary and foreign keys) to establish connections between tables. Common types of relationships in SQL include one-to-one, one-to-many, and many-to-many relationships, which help to maintain data integrity and enable efficient querying of data across multiple tables.
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What are some examples of SQL?
SQL is short for Structured query language. Examples of SQL are seleect * from table_name where <predicates>;
What is the purpose of the AS command in SQL?
If you are in search of learning the purpose of the AS command in SQL, there are a few resources that are available to you. One resource that can explain the purpose of the AS command in SQL is Wikipedia.
What are the SQL instances?
SQL instances are individual running copies of the SQL Server software, each with its own system databases and user databases. They are used to segregate and manage multiple databases on a single SQL Server. Instances allow for better utilization of server resources and provide a level of isolation between different sets of databases.
How can one explain what Microsoft SQL Hosting is?
The best place to get more information about Microsoft SQL Hosting is to go directly to Microsoft. There is so much information on SQL Hosting so one can get all the information they need.
What SQL operators can be used to omit records from a search by specifying a not-equal relationship?
NOT
Write a note on computer structure?
Control our any data base with the help of SQL, the professional name of SQL is SEQUEL ( Structure Query English Language)
Explain various DDl commands in SQL?
DDL (Data Definition Language) commands in SQL are used to define the structure of database objects. Some common DDL commands include: CREATE: Used to create database objects like tables, views, indexes, etc. ALTER: Used to modify the structure of existing database objects. DROP: Used to delete database objects. TRUNCATE: Used to delete all records from a table.
Write short note on transact-sql?
Transact-SQL is the brand of SQL used by Microsoft SQL Server, Microsoft's most advanced database software.SQL is a language used to operate databases. For example, you could write a SQL query to find the phone numbers for people named "Smith" in a phone database.A database just stores related information in tables organized into rows. For example, a phone book database would have a table of rows where each row contains name, phone number, and address. A database can have multiple tables; so a phone book database would have separate tables for people and businesses.
What is sql statements?
SQL in database is short for structured query language. There are four types of SQL statements which are as follows : 1) Data retrieval language 2) Data manipulation language 3) Data control language 4) Data definition language
How would one explain what an SQL server is?
SQL server, or a Structured Query Languange server, is Microsoft's relational database management system. As a server it provided different needs, like data warehousing and web-enabled databases.
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.
What is the difference between T-sql and sql?
T-SQL is Microsoft's version of the generic SQL langauge to be used with, for example, Microsoft SQL Server.
