auto-increment

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MySQL Auto Increment Custom Values

I开发者_运维技巧 am trying to make a column in a mysql database that auto increments by one but goes from 0-Z and then rolls.[详细]

2023-02-15 05:42 分类：问答
UUID versus auto increment number for primary key

Why should I choose UUID over an auto increment number for my entity\'s primary 开发者_JAVA百科key? What are the pros and cons?Andrey and Mjg both had good points, but I would add a related performanc[详细]

2023-02-14 17:28 分类：问答
MySQL: Changing IDs of primary keys

I need to merge parallel tables from 2 different schemas. They are practically the same (some fields are different), but the IDs (their PKs) are different.[详细]

2023-02-13 16:51 分类：问答
Convert MyISAM to InnoDB where tables have two-column (composite) PK and one of those is auto-increment

I would like to convert some of our MyISAM tables to InnoDB so I can take advantage of foreign key support.However, most of the tables use a two-column (composite) primary key design in which one of t[详细]

2023-02-12 11:15 分类：问答
How to add AUTO_INCREMENT to an existing column?

How do I add auto_inc开发者_StackOverflow中文版rement to an existing column of a MySQL table?I think you want to MODIFY the column as described for the ALTER TABLE command. It might be something like[详细]

2023-02-12 06:33 分类：问答
How to enable auto-increment with Sql compact & C#

I\'m using C# 2010 Express. I have created a SQL Server CE database file (.sdf) then created Information table and ID, Name, City columns with Database Explorer. I want to save names and city user wi[详细]

2023-02-12 06:26 分类：问答
MySQL - Auto_increment by 10

How do I set the au开发者_如何学JAVAto_increment column in such a way that it increments by 10 for each record insert.[详细]

2023-02-12 03:54 分类：问答
Hibernate does not fill AUTO_INCREMENT column being part of composite PK, bug or anti-feature?

I\'ve found a problem with Hibernate and composite key with one of its column auto incremented. I\'m using MySQL and primary key composed of 2 columns, GID and LANG. GID column is set as AUTO_INCREME[详细]

2023-02-10 08:39 分类：问答
Make a column the max of another +1 PL/SQL?

I cant use auto increment in phpmyadmin for this but I would like to see if its possible and find a way to get the max(displayorder) +1 every time there\'s a row insert. Could someone sh开发者_JAVA技巧[详细]

2023-02-09 14:22 分类：问答
Scoped AUTO_INCREMENT in MySQL?

I am using MySQL in a rails application. I have a users table (standard stuff like id, name etc) and a books table (again with id, user_id and title etc).[详细]

2023-02-09 05:28 分类：问答