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How to delete migration files in Rails 3
... or staging, it's safer to just write another migration that destroys your table or columns.
Another great reference for migrations is: http://guides.rubyonrails.org/migrations.html
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What is the difference between “word-break: break-all” versus “word-wrap: break-word” in CSS
...at the container width — especially if the container is a pre element or table cell where the word-wrap property may not work as expected.
– gfullam
Jun 2 '15 at 18:50
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Select all columns except one in MySQL?
...g to use a select statement to get all of the columns from a certain MySQL table except one. Is there a simple way to do this?
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MySQL “incorrect string value” error when save unicode string in Django
...developer here)
To solve this you need to:
Change your MySQL database, table and columns to use the utf8mb4 character set (only available from MySQL 5.5 onwards)
Specify the charset in your Django settings file as below:
settings.py
DATABASES = {
'default': {
'ENGINE':'django.db....
How to customize the background/border colors of a grouped table view cell?
...to customize both the background and the border color of a grouped-style UITableView.
11 Answers
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2 column div layout: right column with fixed width, left fluid
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Simplest and most flexible solution so far it to use table display:
HTML, left div comes first, right div comes second ... we read and write left to right, so it won't make any sense to place the divs right to left
<div class="container">
<div class="left">
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Is there a Boolean data type in Microsoft SQL Server like there is in MySQL? [duplicate]
...rticularly user friendly. For instance, I'm displaying a datagrid of a sql table, and I'd like the users to be able to see/edit true or false, not 1 or 0.
– Charles Clayton
Jul 17 '15 at 16:04
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What good are SQL Server schemas?
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Schemas logically group tables, procedures, views together. All employee-related objects in the employee schema, etc.
You can also give permissions to just one schema, so that users can only see the schema they have access to and nothing else.
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Entity Framework - Invalid Column Name '*_ID"
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What I have figured out is when you have an ICollection that references a table and there is no column that it can figure out, it creates one for you to try to make the connection between the tables. This specifically happens with ICollection and has driven me "batty" trying to figure it out.
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常用Sql - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
常用Sqlmysql：drop table if exists tablename;不能写成drop table tablename if exists tablename;mysql：建立索引SqlCREATE TABLE t...mysql：drop table if exists tablename;
不能写成
drop table tablename if exists tablename;
mysql：建立索引Sql
CREATE TABLE tablename (
`ID...