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david lee
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What is a field that is chosen to uniquely identify a record called?
A field that is chosen to uniquely identify a record is called a primary key. This key helps uniquely identify each record in a database table and ensure data integrity.
DEFENSEIVe driving What does SIPED stand for?
SIPED stands for Search, Identify, Predict, Decide, and Execute. These are the key components of defensive driving that involve constantly scanning the road, anticipating potential hazards, making informed decisions, and taking appropriate actions to avoid accidents.
How can a Foreign Key and a Primary Key interact with each other?
A foreign key in a table references the primary key in another table, creating a relationship between the two tables. This ensures referential integrity, meaning that values in the foreign key column must exist in the primary key column. This relationship allows data to be linked and maintained consistently between the tables.
What is the condition for a key to be a foreign key?
A key is considered a foreign key if it references the primary key of another table to establish a relationship between the two tables. It enforces referential integrity, ensuring that data in the foreign key column corresponds to data in the primary key column.
What does the term foreign key mean in databases?
A foreign key is a field in a database table that is used to establish a relationship with another table. It ensures referential integrity by enforcing a link between two tables based on a matching key. This key is typically a primary key in the referenced table.
What step should it be to identify key words in the assignment?
The step to identify key words in the assignment is to carefully read and understand the assignment prompt. Look for specific words or phrases that highlight the main objectives, requirements, or focus of the assignment. These key words will help guide your research and writing process.
What is a transition line?
A transitional line is a sentence that serves to connect two thoughts or ideas, usually with key words that identify the relationship between them. They are used to maintain a clear flow of logic. Some examples of key words are: in contrast, furthermore, or in addition.
What are some key words to use in writing an evaluation?
Some key words used in evaluations are:acceptableappropriatecapableexcellentexpectedexperiencedsatisfactorytrusted
What is the purpose of a summary of the literature piece in your essay?
Allowing the reader to identify key content and put them it into her own words.
Is a dichotomous key used to identify unknown organism?
Yes, a dichotomous key is used to identify an unknown organism.
Is a dichotomous key used to identify an unknown organism?
Yes, a dichotomous key is a tool used to help identify unknown organisms by presenting a series of paired characteristics for the user to choose from, ultimately leading to the identification of the organism.
Entity integrity constraint?
The entity integrity constraint states that no primary key value can be null. This is because the primary key value is used to identify individual tuples in a relation. Having null value for the primary key implies that we cannot identify some tuples. This also specifies that there may not be any duplicate entries in primary key column key row.
How do you get a key with no spare key?
You should be able to identify the lock with a number on the lock face or a manufacturer, also the type of lock or what it is for can hold relevance. This information can help you to identify the key you need.
What the difference between primary key and scendary key?
A primary key is a unique identifier for a record in a database table and is used to ensure each record is uniquely identifiable. A secondary key is a key used for sorting and indexing purposes, but can have duplicate values within a table.
What is the primary key field of a database?
its a unique key use to identify data in database
Why is a Key important in a database?
a key is important in a database because using of that key only we can identify a unique attribute.
What uses a key to identify symbols in the graph?
A legend.
