calculated-columns

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Adding virtual columns to current table in Doctrine?

I\'m using Doctrine 1.2 with Symfony 1.4.Let\'s say I have a User model, which has one Profile.These are defined as:[详细]

2023-02-08 16:01 分类：问答
C# Datagrid multiple columns to one column

I am using开发者_开发技巧 datagrid control to represent some data. I want to show values from multiple columns in one cell. How to achieve that? Currently my datagrid is binded to List. List elements[详细]

2023-02-05 03:42 分类：问答
Adding a computed column to an ActiveRecord query

I am running a query using a scope and some conditions.Something like this: conditions[:offset] = (options[:page].to_i - 1) * PAGE_SIZE unless options[:page].blank?[详细]

2023-02-03 23:31 分类：问答
Android SQLite "order by" calculated column in union query

I have been using the following code to query one table: public Cursor fetchFilteredItemsNearSortedByDistance(String strTable, String[] strArrayFields, String strField, String strCriterion, double db[详细]

2023-02-02 06:41 分类：问答
HTML Calculated Column Formula Help!

I\'m trying to use a HTML calculated column so that I can display a RAG status bar for my tasks in SharePoint. I had it working until I added the IF containing % complete. Can you tell me where I\'m g[详细]

2023-01-27 22:33 分类：问答
What are the trade-offs when denormalizing for a computed column?

I hope I am not asking a too obvious question here. For my current project I am designing a relatively simple database using sql server 2008. For one of the tables I have decided to introduce a \'Com[详细]

2023-01-27 20:41 分类：问答
mysql calculation field stored in another field

I have fields in mysql that look like this: constant1 , constant2, variable1, variable2, formula The formula field stores a formula utilizing constant1, constant2, variable1 and variable2.[详细]

2023-01-27 03:30 分类：问答
how to create calculated field in mysql?

i have a table like below: create table info (username varchar(30),otherinfo varchar(100)); now i want to alter this table to have new field and this field has to have default value as[详细]

2023-01-26 07:32 分类：问答
SQL Server Calculated Column

I have two columns, both int\'s, Wins and Losses. I have a calculated column WinPercentage as a decimal(14,3), I want this to be:[详细]

2023-01-23 04:47 分类：问答
Is there a way to pivot rows to columns in MySQL without using CASE?

There are lots of posts out there on pivoting rows into columns for various databases.They seem to fall into two camps, using case statements or using a built in function of the database vendor.I am u[详细]

2023-01-22 22:11 分类：问答