by: John Simmons |
last post by:
How is it that even though I have the column "username" in my database set
as a Primary key, using my PHP script to add new users to the database works
without any errors even when signing up using...
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by: js |
last post by:
I am trying to create a primary key constraint on a view in the
following statement. However, I got an error ORA-00907: missing right
parenthesis. If the CONSTRAINT clause is removed, then the...
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by: Bob C. |
last post by:
I want to create a 1-many relationship. Parent table has a primary
key, child table has no primary key. The child table does have an
index with all four fields of the parent's PK. How can I do...
|
by: William D. Bartholomew |
last post by:
I'm working on a system that is very address-centric and detection of
duplicate addresses is very important. As a result we have broken
addresses down into many parts (DDL below, but I've left out...
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by: Kumar |
last post by:
Need urgent help....
I wanted update one table which has a primary key and also has few
dependents.
I dropped Primary key before update sothat it won't affect the
dependent tables.
After...
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by: |
last post by:
Hi,
I am getting the following error when I run my Visual Basic
application:
"Cannot add primary key constraint since primary key is
already set for the table"
I am using datasets with...
|
by: Tibor |
last post by:
I am using PostgreSQL 7.4.1 (only through psql)
I know, that the command
ALTER TABLE OFFICES
DROP PRIMARY KEY (CITY);
and its foreign key equivalent:
ALTER TABLE SALESREPS
DROP CONSTRAINT
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by: Kevin Murphy |
last post by:
Using PG 7.4.5 on Mac OS X 10.3 ...
I have a primary key that I can't destroy and can't create. One weird
symptom is that when I use \d in psql to attempt to display the
constraint, there is no...
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by: Peter |
last post by:
I am interested in informed feedback on the use of Constraints, Primary Keys
and Unique.
The following SQL statement creates a Bands tables for a database of
bookings Bands into Venues, where the...
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by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
|
by: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
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by: emmanuelkatto |
last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud.
Please let me know.
Thanks!
Emmanuel
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by: Sonnysonu |
last post by:
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers,...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
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