javadb
Creating a "Java DB" database and associated tables in main checking to see if they exist?
I\'m creating an applicaation on Netbeans 7!I\'d like my application to have a little code in main so that it can create a Java DB connection checking to see if the database and the associate tables e[详细]
2023-04-12 04:21 分类:问答Java DB - Why can't I create this table with these foreign key constraints?
I am trying to create three tables: Users username userID Categories category categoryID userID (references user table)[详细]
2023-04-04 23:36 分类:问答calling derby (java db) 'show tables' from jdbc
I need to enumerate the tables in a Derby (aka Java DB) database using JDBC in a Java program.All I am aware of for doing this is the SHOW TABLES command.[详细]
2023-04-04 12:50 分类:问答Apache derby Double datatype - and trying to default it to "null"
Well, I\'m a bit puzzeled here, yet it seems to be a really dumb question. I\'m trying to create a table that has a double column that is null by default. What i get is a table with a double column t[详细]
2023-03-31 18:30 分类:问答INSERT, and get the auto-incremented value
Consider the following table: create table language ( id integer generated always as identity (START WITH 1, INCREMENT BY 1),[详细]
2023-03-22 01:53 分类:问答JavaDB: get ordered records in the subquery
I have the following \"COMPANIES_BY_NEWS_REPUTATION\" in my JavaDB database (this is some random data just to represent the structure)[详细]
2023-03-07 07:25 分类:问答Externally browsing an Embedded JavaDB deployment
I created and deployed a jav开发者_如何学编程adb-powered portable swing application. The app creates the javadb database folder as expected if it doesn\'t exist.[详细]
2023-03-04 19:26 分类:问答how to use 'BETWEEN' condetion two times in one sql statement for same column or diffrent columns
this is sql statement give only one value SELECT count(pn1) FROM pledges WHERE date1 BETWEEN \'2011-05-05\' AND \'2011-06-06\'[详细]
2023-03-03 05:36 分类:问答Java bridge between PHP and Database
First, I will present what it is doing my web-application : The subject of this web-application is different distributed databases and distributed data sistems with a specific type of information. Unt[详细]
2023-03-01 22:13 分类:问答Java DB Schema 'TEST' does not exist
Hy!!! I want to ma开发者_如何学编程ke a small DB Demo. My Error is: Schema \'TEST\' does not exist[详细]
2023-03-01 07:26 分类:问答