is it possible to assign two primary key in a table
Answers were Sorted based on User's Feedback
Answer / sushma s
A table can have only one primary key assigned.
| Is This Answer Correct ? | 19 Yes | 0 No |
Answer / sudipta santra
IF WE MAKE COMPOSITE PRIMIRAY KEY THEN ONLY MORE THAN ONE
COLUMNS WILL BE BIND UP.
| Is This Answer Correct ? | 11 Yes | 1 No |
Answer / jd
At the end of the day a primary key is unique non null value
that the data is indexed upon.
Even if only one column can be explicitly defined as the PK.
It is possible to uniquely identify a row differently, by
creating a unique non null column that is indexed. It is
implicitly then a PK.
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer is strictly NO...!!!
we may have morethan one unique column in a table but we should assign only one primary key...!!
| Is This Answer Correct ? | 3 Yes | 0 No |
What is deterministic in mysql?
How many entries can mysql handle?
What is the use of mysqli_fetch_array?
What is difference between mongodb and mysql?
Which statement is used to delete a table in MySQL.
Is mysql good for large database?
How we can copy one table data into another table whose name same as table but in differ database
What are the 'mysql' command line options?
what is the difference between MyIsam and InnoDb engine?
what is the difrence between sql and pl/sql
How to write after insert event update trigger on the same table in mysql?
How many services is running in sql server?
Oracle (3253)
SQL Server (4518)
MS Access (429)
MySQL (1402)
Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)
DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)
Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)
Database Management (1411)
Databases AllOther (288)