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What else can I help you with?
What is tuples in sql?
Tuple is a collection of one or more attributes or rows present in a table.
Which construct in SQL is used to test whether a subquery has any tuples in its result?
Exists
Characteristics of relations in relational database model?
No Duplicate Tuples - A relation cannot contain two or more tuples which have the same values for all the attributes. i.e., In any relation, every row is unique. • Tuples are unordered - The order of rows in a relation is immaterial. • Attributes are unordered - The order of columns in a relation is immaterial. • Attribute Values are Atomic - Each tuple contains exactly one value for each attribute. It may be noted that many of the properties of relations follow the fact that the body of a relation is a mathematical set.
Which SQL keyword is used to specify a condition that rows must meet to be included in the results of an SQL SELECT query?
select
What advantages of QBE compared to SQL?
QBE is an advantage over SQL as it is a visual technique allowing non-experts to do searches, as it is simple to understand.
Why do duplicate tuples not allowed in a reaction?
Duplicate tuples are not allowed in a reaction because each reactant and product must be listed only once to accurately represent the stoichiometry of the reaction. Including duplicate tuples would result in an incorrect representation of the reactants and products involved, leading to inaccuracies in the reaction equation.
Why duplicate tuples are not allowed in DBMS?
Since relation is a set, and tuples are element of a set, according to set theory, the elements of a set are not ordered.
What is tuples in sql?
Tuple is a collection of one or more attributes or rows present in a table.
Which construct in SQL is used to test whether a subquery has any tuples in its result?
Exists
How do you find duplicate record using SQL?
By default most implementaions of SQL WILL give you duplicate records unless you invoke the DISTINCT clause
What is a full outer join sql?
Join is used to combine related tuples from two relations . Full outer join cover all possible combinations of common tuples.
Will newid in sql generate duplicate key?
no
What provides the ability to query information from the database and to insert tuples into delete tuples from and modify tuples in the database?
SQL (Structured Query Language) provides the ability to query, insert, delete, and modify data in a database. It is a standard language used for managing and manipulating relational databases. By using SQL commands, users can interact with the database to retrieve, add, change, or remove data as needed.
How do you avoid duplicate data entry in aspnet with sql?
We can done with the help of Primary concept in Sql Server.
How you delete duplicate row of table in SQL?
This can be different depending on the SQL server involved. Please specify the Database being used (ie, mysql, postgresql, oracle, ms SQL Server) I am using SQL 2005 express, what is the command, i can only get... delete... and what else? lets say i want to delete a duplicate row that is row 2.
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 does oxygen allow the cell to do?
Duplicate.
