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'IF' in 'SELECT' statement - choose output value based on column values
...t
when report_type = 'N'
then -amount
else null
end
from table
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In php, is 0 treated as empty?
...t's a core design philosophy of PHP. I agree that this is an extremely debatable choice, however, I'm not here to debate that choice with you. Within PHP's logic, empty as equivalent to == false minus notices is fine IMO. That some things should be very different in PHP than they are is a different ...
How can I sanitize user input with PHP?
...o be guaranteed against SQL injection.
Please see my website http://bobby-tables.com/ for more about preventing SQL injection.
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LoadRunner中参数化技术详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...在VuGen中运行脚本时，该值为-1.
8
DataFile/Table
可以在属性设置中编辑文件，添加内容，也可以从数据库中提取数据。
9
UseDefinedFunction
从dll的简单函数中获取信息替代参数
【...
Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
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I had this error when I was trying to implement a custom ViewCell for a table. When I highlighted View controller for the XIB and connected to the elements in the CellView caused the error " this class is not key value coding-compliant for the key" once I deleted these it got rid of the error.
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What is the right way to override a setter method in Ruby on Rails?
...iginal Answer
If you want to override the setter methods for columns of a table while accessing through models, this is the way to do it.
class Model < ActiveRecord::Base
attr_accessible :attribute_name
def attribute_name=(value)
# custom actions
###
write_attribute(:attribute_...
Spring Boot + JPA : Column name annotation ignored
...ing uses org.springframework.boot.orm.jpa.SpringNamingStrategy to generate table names. This is a very thin extension of org.hibernate.cfg.ImprovedNamingStrategy. The tableName method in that class is passed a source String value but it is unaware if it comes from a @Column.name attribute or if it h...
How to link to part of the same document in Markdown?
I am writing a large Markdown document and would like to place a table of contents of sorts at the beginning that will provide links to various locations in the document. How can I do this?
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UITableViewCell Separator disappearing in iOS7
I have some strange issue with UITableView only in iOS 7.
37 Answers
37
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How to use Oracle ORDER BY and ROWNUM correctly?
...ory, in Oracle, you need to limit the results manually when you have large tables and/or tables with same column names (and you don't want to explicit type them all out and rename them all). Easy solution is to figure out your breakpoint and limit that in your query. Or you could also do this in the...