Home
Recent Q&A
Java
Cloud
JavaScript
Python
SQL
PHP
HTML
C++
Data Science
DBMS
Devops
Hadoop
Machine Learning
Ask a Question
what is a primary key?
Home
DBMS
what is a primary key?
asked
Oct 30, 2019
in
DBMS
by
rajeshsharma
Q:
what is a primary key?
primary-key
dbms-primary-key
dbms-key
1
Answer
0
votes
answered
Oct 30, 2019
by
SakshiSharma
primary key:an attribute to identify a record uniquely is considered to be
primary key.for eg in the student table student_no is the primary key because it
can be used to identify unique record or unique student.
Related questions
0
votes
Q: what is a candidate key?
asked
Oct 30, 2019
in
DBMS
by
rajeshsharma
dbms-candidate-key
dbms-key
candidate-key
0
votes
Q: what is a key in DBMS?
asked
Oct 30, 2019
in
DBMS
by
rajeshsharma
dbms-key
key-dbms
0
votes
Q: What is DBMS Key?
asked
Oct 27, 2019
in
DBMS
by
rajeshsharma
keys
dbms-keys
dbms-key
0
votes
Q: How many Primary keys can have in a table?
asked
Nov 4, 2021
in
Sql
by
john ganales
primary-key
0
votes
Q: If a database table of users contains the following rows, and id is the primary key, which statement would return only an object whose last_name is "Cordero"?
asked
Aug 26, 2022
in
Ruby
by
Robin
ruby-on-rail
0
votes
Q: What exception is raised, if the primary key is excluded from a Raw query?
asked
Jun 29, 2022
in
Django
by
sharadyadav1986
django
exception
0
votes
Q: Sqoop will use a column to split. If that column not present then it will use primary key column.
asked
Mar 3, 2022
in
Sqoop, Flume and Oozie
by
sharadyadav1986
sqoop-column
0
votes
Q: What is a primary key in cosmosDB
asked
Jan 28, 2022
in
Azure Cosmos DB
by
sharadyadav1986
primarykey
+3
votes
Q: How can you delete duplicate records in a table with no primary key?
asked
Jan 14, 2022
in
Sql
by
GeorgeBell
t-sql
0
votes
Q: What is the difference between a primary key and a unique key?
asked
Nov 5, 2021
in
Sql
by
rajeshsharma
pimary-key-vs-unique-key
+1
vote
Q: Primary key in a keyspace is a ____.
asked
Jan 15, 2021
in
Cassandra
by
SakshiSharma
keyspace
0
votes
Q: Which statement is true for a PRIMARY KEY constraint?
asked
Dec 15, 2020
in
Sql
by
SakshiSharma
#primary-key
primary-key-constraint
0
votes
Q: What is a Primary Key?
asked
Dec 13, 2020
in
Sql
by
SakshiSharma
#primary-key
#sql-primary-key
0
votes
Q: What are the constraints? How to add a named PRIMARY KEY constraint in SQL?
asked
Jul 29, 2020
in
Oracle
by
Hodge
#oracle
#primerykey
0
votes
Q: What is a composite primary key in SQL?
asked
Jul 12, 2020
in
Sql
by
Robindeniel
#sql-composite-primary-key
#sql-primary-key
#primary-key-sql
0
votes
Q: How to set a primary key in MongoDB?
asked
Jun 3, 2020
in
MongoDB
by
Robindeniel
#mongodb-primary-key
+1
vote
Q: Do a MongoDB database support foreign-key and primary-key relationship in MongoDB?
asked
May 18, 2020
in
MongoDB
by
SakshiSharma
#mongodb-foreign-key
0
votes
Q: What is a Cassandra Primary Key? And what are it’s different types?
asked
Feb 3, 2020
in
Cassandra
by
rajeshsharma
#cassandra-primary-key
+1
vote
Q: You need to design the primary key for DynamoDB based on three attributes. What do you do?
asked
Aug 14, 2022
in
NoSQL
by
AdilsonLima
nosql
0
votes
Q: id- is the auto assigned primary key by Django with the datatype.
asked
Jun 28, 2022
in
Django
by
Robin
django
id
...