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New posts in primary-key
Unique identifiers for users
Oct 16, 2022
sql
primary-key
natural-key
How to use String.hashCode to generate primary keys
Sep 13, 2022
java
string
primary-key
hashcode
Are usernames a valid candidate for a primary key?
Aug 08, 2022
database-design
primary-key
authentication
Is there a simple way to create a unique integer key from a two-integer composite key?
Oct 29, 2018
tsql
math
primary-key
uniqueidentifier
composite-key
Primary key id reaching limit of bigint data type
Nov 12, 2022
mysql
int
primary-key
auto-increment
bigint
Why we can't have more than one primary key?
Nov 16, 2022
sql
primary-key
Behavior of Insert and Upsert in KDB
Sep 15, 2022
database
insert
primary-key
kdb
Managing identity/primary key across servers
Sep 23, 2022
sql-server
primary-key
identity
Changing MySQL primary key when foreign key contraints exist
Sep 25, 2022
mysql
foreign-keys
primary-key
constraints
mysql-error-1025
MySQL - how to use VARCHAR as AUTO INCREMENT Primary Key
Oct 14, 2022
mysql
primary-key
auto-increment
Duplicate entry for key 'PRIMARY' in mysql
Aug 29, 2022
mysql
primary-key
duplicates
What is the difference between Primary Key only and Primary Key constraint?
Feb 24, 2019
sql
constraints
primary-key
Database export Access to SQL server: indexes and keys?
Mar 24, 2019
sql-server
ms-access
indexing
migration
primary-key
What happens when auto increment primary key in MySQL comes to maximum
Apr 08, 2022
mysql
int
primary-key
auto-increment
Merge multiple Excel workbooks based on key column
Nov 20, 2022
excel
primary-key
unique
vlookup
How to change value of primary key and update foreign key in the same time
May 14, 2022
sql
sql-server-2005
primary-key
Primary and foreign keys in xml schema
Sep 25, 2022
foreign-keys
xsd
primary-key
Can a primary key in postgres have zero value?
Sep 15, 2022
postgresql
primary-key
postgresql-9.3
Best Practice for PK in SQL Server
Jan 10, 2017
sql
sql-server
sql-server-2005
database-design
primary-key
What is the proper way to catch and handle ORA-00001 SQLException with JDBC?
Apr 21, 2022
oracle
jdbc
primary-key
constraints
ora-00001
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