SQL tutorial on Primary key / SQL Primary key, In this tutorial you will learn about simple primary key, composute primary key, how to drop primary key. defining …
Tag: drop constraint sql, [vid_tags]
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Which Indian writer book is best to learn PL/SQL ?
i really like u r way of teaching,it is concise
Hy can you please make tutorials about oracle jdeveloper and adf please and how to use oracle database within a project like restapis and tnx for your wirk keep going
Best explanation found!
will it be work?
if I give same name for CONSTRAINT and PRIMARY KEY name ?
Sir Can you help me with one problem?
I want to connect a MADE java Application GUI(in Netbeans) with Oracle database 11g (But with Primary Key Constraint,i cannot use Primary key in Oracle Database)
Can you give me any documentation and advice for an Java Application? And Thanks for your hard work on youtube ! Keep it Up
this is the BESTTT video. keep it up you're doing an amazing job 😀
what will happen if create primary key later on the table column cust_id and if it contains the duplicate data?
Hi manish thanks for the video.
Can you please answer a question why do we have a need to enable and disable the primary key.?
Hey man. Your videos are awesome. I'm studying for my Oracle 1Z0-071 certification test and your videos are helping me. I really appreciate you posting these helpful tutorials.
Could you please upload remaining constrains also check , defalut, unique
Excellent man….You are good at explaining……
Helo sir, can i add primary key to multiple columns without dropping existing primary key?
Manish rocks!
great work bro,
I want to learn more from you.
can you please teach me?
Thanks Manish for these videos which is helping more & more.
I need your help on how to use newID() function in Oracle.
This is done in toad application or other…?
Best video ever , excellent Manish..
Error report –
ORA-00911: invalid character
00911. 00000 – "invalid character"
*Cause: identifiers may not start with any ASCII character other than
letters and numbers. $#_ are also allowed after the first
character. Identifiers enclosed by doublequotes may contain
any character other than a doublequote. Alternative quotes
(q'#…#') cannot use spaces, tabs, or carriage returns as
delimiters. For all other contexts, consult the SQL Language
Reference Manual.
when i try to execute this query
CREATE TABLE customer
(
cust_id NUMBER(3) PRIMARY KEY,
cust_name VARCHAR2(3),
phoneno NUMBER(10),
);
anyone help please
Question: Why must we drop the simple constraint PK before altering the table to add the composite. In your example, when creating the table the composite constraint was in the DDL?
One of the best tutorial class with all the details…Keep Going…
Some Queries:
1.I created a table ,and I want to add Primary Key to a table 'Name'.but the name column have null and duplicate values,What should I do?? Can I add it if not what should I do,I dont want any other column as PK but name has the above issues.
2.Can You make a video on various level Certification on Oracle in detail…
Error report –
SQL Error: ORA-00955: name is already used by an existing object
00955. 00000 – "name is already used by an existing object"
*Cause:
*Action:
for creating table this error is showing
Hi, my password has expired..pls let me know how to change it.reset password is disabled
sir how to drop constraint on commosit primary key???
plzzz
upload Oracle Apps DBA Tutorials
great!!
Hello Manish,
First of all I am a hug fan. It is incredible the way you simplify things.
While going through this tutorial I didn't understand the concept of Composite Key.
Because referring to the example you have shown here. I am still having duplicate values for phone number but unique values for customer id.
please help…
best of luck for oracle 12c video i hope it will be awesome
thanks manish its very helpful for me
thanks :))))
thanks to this video, my semester will be saved
excellent job Manish …. this video is great and help me lot ….
i really appreciate your work …. and thanks for this video ….
thank you very much
Ajay Kumar
great tutorial… Thanks for the effort
thanks manish ,these all videos really help me lot……grt work !!
Manish you are great!!!
I appreciate your tutorials
Boss simply superb all of this SQL videos…I loved it and instantly subscribed your channel. 🙂
could you provide me real time scenarios..It would helps a lot
Extremely helpful, thank you!
best in youtube even there are subtitles