primary-key

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MySQL JOIN Not Using Primary Key When Joining on Result Returned From Function

Description I\'m trying to JOIN a table using the result of a stored function. The stored function returns an unsigned integer, which is the same type as the field I\'m joining against.[详细]

2023-04-08 16:46 分类：问答
To use auto-increment in MySQL or not?

I have read certain places that it is a good practice to typically use an auto-incrementing Primary key for most MySQL tables, rather开发者_C百科 than simply relying on a non-increment field that will[详细]

2023-04-07 18:14 分类：问答
How to force primary key in ActiveRecord with PostgreSQL to jump start from a specific integer value?

From this: How to make a primary key start from 1000?It seems that I need to issue the SQL command: ALTER TABLE tbl AUTO_INCREMENT = 1000;[详细]

2023-04-07 11:45 分类：问答
Some sort of “different auto-increment indexes” per a primary key values

I have got a table which has an id (primary key with auto increment), uid (key refering to users id for example) and something else which for my question won’t matter.[详细]

2023-04-07 09:18 分类：问答
Database auto increment primary key with business login

I have a database with USERS table and EVENTS table, both with auto increment integer primary key called id. when the client app start an event, a message sent to开发者_开发知识库 the server, and the[详细]

2023-04-07 07:18 分类：问答
Adding a Primary key to a MySQL table, and auto-populating it

开发者_开发问答I have a bunch of huge tables that don\'t have primary keys. (Don\'t ask me why) I will append an \'id\' field to each table. It will be an integer type. Later, I will promote it to a n[详细]

2023-04-06 01:26 分类：问答
SQLServer choosing primary key type

I have a list of objects each of its own id and I need 开发者_如何学Goto create a table for them in a database. It\'s a good idea to use their ids(since they are unique) as a primary key in the table[详细]

2023-04-05 07:12 分类：问答
problem setting up primary keys in mysql database... help?

I have a table set up on a mysql database called \"access\" with three columns called: rights_id, (PRIMARY KEY)[详细]

2023-04-04 16:11 分类：问答
When to use GUID in SQL Server [duplicate]

This question already has answers here: Closed 11 years ago. 开发者_如何学GoPossible Duplicate: GUID vs INT IDENTITY[详细]

2023-04-04 11:03 分类：问答
General SQL question about Primary Keys

I know this is pretty elementary but here it goes. I would like to know how you know what columns are a primary key in a table that does not have a prim开发者_如何学Pythonary key?Is there a technique[详细]

2023-04-04 09:30 分类：问答