Tags » Primary Key

Can't perfrorm Create, Update or Delete operations on Table(..) because it has no primary key

I stumbled upon this logical error after having published a new table in the EPiServer DXC environment and had it deployed to preparation and production. As you may know, you cannot publish changes to the prep and prod databases directly in DXC, due to which I was stranded with having non-functional code just after Friday’s last update window (DXC does not handle update / publish requests on the weekend.) 139 more words


Creating a sample database in Microsoft Access 2007

We talked about what is database and why do people use it ? at this post. Now, we will create a sample database by using… 822 more words

Lecture Notes

Finding primary key candidates

Probably one of the most common challenges I see when I do ETL and business intelligence work is analyzing a table (or a file) for possible… 1,558 more words


UUID vs Auto Increment

What is the best method to create a key in today’s advanced Javascript node.js style applications? Do you rely on the old tried and true method to use auto-increment on the database primary key? 220 more words


SQL Day 3: Creating Tables & Enforcing Primary and Foreign Key

LO1: Creating the Tables

LO2: Enforcing Primary and Foreign Key

Prerequisite: Creating a Database

Creating Tables

You can create a table by two ways.

Graphically… 585 more words


Primary Key.

Q153. Define Primary Key.

Ans. Primary Key is set of one or more attributes that can uniquely identify tuples within a relation.

Titik Balik

Well, UTS semester 3 sudah berlalu. Semoga hasilnya memuaskan ya, hihi.

Challenge berikutnya adalah menghadapi UAS. Persiapan ini ya bisa dengan memperkaya pemahaman materi, ketahanan fisik, dan yang paling penting adalah kedekatan kita dengan yang Maha pemilik ilmu, Alloh SWT. 418 more words

Primary Key