ddl

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shrinking a column in oracle

Lets say i have a table with the following definition create table dummy (col1 number(9) not null) All the values开发者_Go百科 in this dummy.col1 are 7 digit long. Now i want to reduce the length o[详细]

2023-04-12 18:06 分类：问答
MS Access DDL: Show Foreign Key References in Relationship View

Using an ADODB connection object, I am able to use SQL DDL with MS Access (joy!). The odd thing is that sometimes declared foreign key references show up in Access\' Relationship View - this would be[详细]

2023-04-12 09:11 分类：问答
how to execute several ddl words with batch processing

When I deploy my asp.net application,I have to create some tablesapces/users,I use the pqsql,however I want to know is there any way I can create them with batch processing?[详细]

2023-04-11 20:45 分类：问答
Errors [42S01][1050] and [HY000][1025] when trying to add foreign key to table in MySQL

I am trying to add a foreign key to an existing table like this... alter table expeditedaddress add foreign key[详细]

2023-04-11 14:43 分类：问答
DROP FUNCTION without knowing the number/type of parameters?

I keep all my functions in a text file with \'CREATE OR REPLACE FUNCTION somefunction\'. So if I add or change some function I just feed the file to psql.[详细]

2023-04-09 16:21 分类：问答
SQL Not Null contraint on entire table

I was wondering if there is any way to make a single Not Null constraint that could apply to all the attributes in my table. I know I could add one to each line, but I am just trying to learn to be mo[详细]

2023-04-09 05:20 分类：问答
Understanding QUOTED_IDENTIFIER

We just ran into a problem with one of our stored procs throwing an error; SELECT failed because the following SET options have incorrect settings: \'QUOTED_IDENTIFIER\'[详细]

2023-04-05 21:06 分类：问答
Can Erwin Forward Engineer a Physical model to generate T-SQL Table Creation scripts?

I never used ErWin, but I think it would be a shame if the DB Developers had to manually create all of the tables that开发者_开发技巧 have already been defined in a huge ErWin Physical model.[详细]

2023-04-05 17:50 分类：问答
Convert mysql database to Oracle

I want to convert my MySQL database to Oracle. I read this. I tried Oracle SQL Developer and watched this as well. I downloaded the oracle developer from Oracle. But there isn\'t any item called \"Mig[详细]

2023-04-05 10:13 分类：问答
Android Dropdown List (iPhone style)

Could anyone tell me either what this widget is or how it co开发者_开发百科uld be recreated? I\'m having to port over a iPhone app, and my boss wants me to make it look as similar as possible, but whi[详细]

2023-04-05 09:35 分类：问答