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What is the difference between unique and primary key?
sql
1 Vote
4 Réponses
8th Feb 2018, 3:43 AM
Shivam Jaiswal
What is the primary difference between CSS with other programs.
beta
html
jpeg
notepad
0 Vote
5 Réponses
17th Oct 2019, 9:00 PM
Kevin Morgan
Why mentioning NOT NULL while applying PRIMARY KEY constraint?
tables
1 Vote
2 Réponses
23rd Jun 2019, 3:45 PM
Yasser AKBBACH
What is primary key and forein key in sql????
join
sql
2 Votes
2 Réponses
29th Jan 2018, 5:03 AM
jaslin
Why do I get 'expected primary expression' error on if statement?
c++
3 Votes
2 Réponses
8th Sep 2018, 3:43 PM
jacksonofgames 28
Do you really have to use a primary key?
sql
1 Vote
3 Réponses
3rd Jul 2016, 8:10 PM
Philipp Thalhammer
What is the difference between primary key and super key?
differences
keys
sql
0 Vote
5 Réponses
28th Nov 2016, 12:39 PM
shilpa
What does "expected primary expression before <" mean?
c++
0 Vote
1 Réponse
2nd Sep 2016, 3:45 PM
Indie Geek
can anyone tell me use of primary key function..?
sql
2 Votes
2 Réponses
16th Aug 2016, 3:02 PM
Aakash Sharma
There is possible more than one primary key in table
sql
2 Votes
4 Réponses
20th Nov 2016, 8:34 AM
MEHTA MESHWA
[Closed] Calculate Column value from other table without Primary Key/Unique
sql
1 Vote
3 Réponses
3rd Jan 2020, 11:42 AM
Sebastian Thomas
Why do we need a primary key? For programming IN SQL , Is it possible to have more than one primary key or cannot be any key
database
0 Vote
7 Réponses
26th Feb 2020, 6:03 PM
HARSHVARDHAN NITNAWARE
What is the difference between UNIQUE and PRIMARY KEY?
sql
tables
1 Vote
2 Réponses
27th Sep 2015, 7:54 AM
Lina
Why is Python the primary language in machine learning?
discuss
language
learning
machine
programming
python
0 Vote
1 Réponse
13th Jun 2018, 11:12 PM
Aletay
What is the primary difference between C and C++
c
c++
1 Vote
2 Réponses
5th Jul 2017, 12:46 PM
Vishnu Vardhan Mamidi
How one can delete Primary key, Foreign key in SQL
delete
foreign
primary
2 Votes
1 Réponse
8th Dec 2021, 5:57 PM
Rupesh Deokar
Whatever your primary programming language or stack, why did you choose it?
.net
c#
coding
development
language
preference
programming
python
ruby
stack
8 Votes
5 Réponses
11th Aug 2017, 3:41 AM
Shane Overby
Where is the primary key in query is actually used?
key
primary
0 Vote
3 Réponses
16th Apr 2018, 6:13 PM
av phani
Which language will be best for learning programming at primary label.
helping
0 Vote
6 Réponses
29th Apr 2018, 3:06 AM
Md Rana Sarkar
What is the difference between primary key and alternate key?
alternate
key
sql
0 Vote
3 Réponses
17th Mar 2017, 4:19 PM
Mohammad Atif Niaz
How to make primary key auto increment using query
create
insert
sql
tables
0 Vote
2 Réponses
15th Oct 2016, 4:37 PM
Hiral
How to define data type of primary key in sql?
mysql
sql
0 Vote
2 Réponses
5th Apr 2020, 7:30 AM
Aditi Mishra
primary phone book code stores in file but fails
c
c++
classes
linkedlist
1 Vote
1 Réponse
21st Sep 2017, 11:19 AM
learnlearnlearn
Which proggraming language should be our primary and why ?
code
self-learning
3 Votes
1 Réponse
12th Jan 2018, 4:04 PM
Filip Kovacevic
what is the use primary key in dbms ?
dbms
rdbms
sql
1 Vote
1 Réponse
13th Sep 2016, 6:57 PM
Sandeep Singh
What is the diffrence between unique and primary key constraints?
sql
0 Vote
3 Réponses
19th Jan 2016, 2:10 PM
Aakash Bidlan
What can be an example of a primary key in database?
database
help
html
it
primarykey
1 Vote
2 Réponses
19th Sep 2020, 12:53 PM
ND BARMAN
What is difference between primary key and alternate key and candidate key??
basics
sql
0 Vote
6 Réponses
8th Feb 2017, 6:16 PM
Joshi Chand
In SQL, is it a must I indicate a primary key? Can't my first column which has int as datatype be the primary key by default?
keys
sql
tables
1 Vote
3 Réponses
27th Mar 2019, 5:20 PM
Babatunde Akinola
Why we have to use when define a primary key with not null. Because I know that primary also includes uniquness of the column
constraints
0 Vote
2 Réponses
4th Jul 2020, 4:35 PM
AYŞE DUMAN
What is a the difference between primary key and unique key
sql
1 Vote
2 Réponses
18th Jun 2017, 6:52 AM
Vhonani Makhado
To remove primary key in sql what is correct statement??
mysql
0 Vote
1 Réponse
26th Aug 2018, 1:58 PM
Shaan Agarwal
What are the primary requirements to become a good programmer?
c#
cpp
functions
games
goals
html5
java
javascript
programmer
success
1 Vote
1 Réponse
25th Sep 2017, 6:53 AM
vishal thakral
What are the differences ( primary & secondary ) between ECMAscript, JavaScript & jScript and why is it important as developers
difference
ecmascript
javascript
jscript
23 Votes
21 Réponses
7th Jun 2019, 4:54 PM
BroFar
Making two columns primary keys (composite key) when creating a table in sql server
sql
sqlsever
t-sql
1 Vote
6 Réponses
28th Aug 2020, 11:33 AM
esther iyege
What are the primary differences between HTML 5 and other versions of HTML?
html5
web
2 Votes
3 Réponses
10th Jun 2018, 8:28 PM
Syntax
Can we do explicit conversion to primary type with user-defined data type??
c++
1 Vote
2 Réponses
20th Jun 2018, 5:52 AM
Suraj Manchala
What's the difference between (NOT NULL + UNIQUIE) and Primary key.?
database
dbms
mysql
oracle
sql
0 Vote
1 Réponse
1st Dec 2018, 12:16 AM
Kishor Jena
How do I set primary keys and foreign keys in a table?
sql
0 Vote
4 Réponses
3rd Sep 2016, 8:28 PM
Mokgaetji Prudence Manyama
When creating a table why we use PRIMARY KEY. what is the reault
sql
1 Vote
3 Réponses
5th May 2019, 9:45 AM
Ajay Sharma
why can't we have more than one Primary key tags ?
sql
0 Vote
2 Réponses
20th Aug 2016, 8:09 AM
Antariksh Verma
Can two tables be joined without having the foreign key- primary key link
join
sql
1 Vote
2 Réponses
5th Jul 2018, 7:57 PM
Zahraa
Can we use a string as primary key in a table?
sql
0 Vote
2 Réponses
9th Aug 2016, 9:43 AM
Christy Tom J
How to set two primary keys in one table in oracle?
key
oracle
primary
0 Vote
2 Réponses
18th Sep 2017, 10:02 AM
Bhumika
"Falling short of empty space on primary memory" what does it means?
c++
1 Vote
2 Réponses
29th Jan 2017, 2:36 PM
Arya DRJ
Is the primary key only meant for rows or is it even for columns
sql
0 Vote
6 Réponses
1st Nov 2016, 5:00 PM
Karthik
How do you use this app as a primary school student grade 3
begginer
grade3
0 Vote
3 Réponses
10th Mar 2019, 10:32 PM
Iswiz
How can we find primary key column name from database table in SQL?
database
mysql
primarykeysql
sql
sqlquery
1 Vote
1 Réponse
8th Jul 2020, 5:24 PM
Anupriya Rajasekaran
C++ getting error that says expected primary expression before << token. But everything looks right
c++
code::blocks
error
0 Vote
4 Réponses
29th Mar 2018, 6:26 AM
Jay
how to remove the duplicate rows without the help of rowid and primary key.
sql
0 Vote
4 Réponses
10th Sep 2016, 4:40 PM
Srinath Mudiraj
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