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SQL error “ORA-01722: invalid number”
...er, and the string cannot be converted into a number.
Without seeing your table definition, it looks like you're trying to convert the numeric sequence at the end of your values list to a number, and the spaces that delimit it are throwing this error. But based on the information you've given us, ...
Many-to-many relationship with the same model in rails?
...dditional information with the association? (Additional fields in the join table.)
Do the associations need to be implicitly bi-directional?
(If post A is connected to post B, then post B is also connected to post A.)
That leaves four different possibilities. I'll walk over these below.
For refer...
How can I make a JPA OneToOne relation lazy
... a proxy object or NULL and it can't determine that by looking at its base table's columns due to one-to-one normally being mapped via shared PK, so it has to be eagerly fetched anyway making proxy pointless. Here's a more detailed explanation.
many-to-one associations (and one-to-many, obviously) d...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...数据表
创建一个测试数据表，sql如下：
CREATE TABLE users (
id INTEGER PRIMARY KEY,
name TEXT,
age INTEGER);
数据表信息
这时，可以查看一下表信息：
插入数据
往 users 表中插入...
In a bootstrap responsive page how to center a div
...http://getbootstrap.com/dist/css/bootstrap.css');
html, body, .container-table {
height: 100%;
}
.container-table {
display: table;
}
.vertical-center-row {
display: table-cell;
vertical-align: middle;
}
<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootst...
Doctrine2: Best way to handle many-to-many with extra columns in reference table
...port AppBundle yml still generate manyToMany relation for the original two tables and simply ignore the third table instead of concidering it as an entity :/
– Stphane
Mar 18 '15 at 23:24
...
Fixing “Lock wait timeout exceeded; try restarting transaction” for a 'stuck" Mysql table?
...threads concerning this problem: Sometimes the process that has locked the table shows up as sleeping in the processlist! I was tearing my hair out until I killed all the threads that were open in the database in question, sleeping or not. That finally unlocked the table and let the update query run...
How to find third or nth maximum salary from salary table?
How to find third or nth maximum salary from salary table(EmpID,EmpName,EmpSalary) in Optimized way?
54 Answers
...
MySQL “WITH” clause
...
Update: MySQL 8.0 is finally getting the feature of common table expressions, including recursive CTEs.
Here's a blog announcing it: http://mysqlserverteam.com/mysql-8-0-labs-recursive-common-table-expressions-in-mysql-ctes/
Below is my earlier answer, which I originally wrote in 200...
Table Header Views in StoryBoards
Is there a way to insert a Table Header View (tableHeaderView) in StoryBoard (like we used to do in Interface Builder)?
3 A...