Tags » Primary Key

Doctrine orm:convert-mappings errors on primary key

I will not say much on this since this is a dirty hack :)
Doctrine will not allow you to use the tool to generate entities out of the database that contains tables without primary key. 100 more words

PHP

Normalization

NORMALIZATION

Fifth Normal Form (5NF)

These relations still have a problem. While defining the 4NF we mentioned that all the attributes depend upon each other. While creating the two tables in the 4NF, although we have preserved the dependencies between Vendor Code and Item code in the first table and Vendor Code and Item code in the second table, we have lost the relationship between Item Code and Project No. 180 more words

Programming In Java

SQL - List Primary key and Concatenate composite Keys into a single row separed by comma

The following query lists all the Primary keys of all the table. 

OP has requested to list all PK and composite PKs and concatenate all it’s composite PK column values into a single row separated by comma hence this post. 134 more words

SQL