I want to sum up the differences between two time columns in a table. I\'m using the following code but it returns zero because end_time is not getting parsed correctly. Both columns are timestamps.
As an exercise I am trying to cr开发者_开发问答eate a simple blog app in .NET, employing DDD. So far I have User, Topic and Comment classes. But the problem is how to link Comment with User and Topic?
The following is a toy problem that demonstrates my question. I have a data frame that contains a bunch of employees; for each employee, it has a name, salary, gender and state.
In R I开发者_如何学JAVA frequently aggregate daily data (in a zoo) by month, using something like this:
I have a Mave开发者_StackOverflow社区n POM that aggregates several modules. <project [stuff]>
This is easy for me to perform in TSQL, but I\'m just sitting here banging my head against the desk trying to get it to work in EF4!
I\'m working on a stored procedure. I have a table called #CashFlow that contains data for a span of time.
I want to get count of a set based on different condition: var invoices = new Accounti开发者_开发百科ngEntities().Transactions
How do I concatenate strings in Entity Framework 4 I have a data from a column 开发者_JS百科and I want to save as a string a comma separated string like \"value1, value2, value3\"
I have a table which has data like statetotal A3 B6 C2 D7 E4 I need to generate a table from this that has total of A & B (true) t开发者_Go百科ogether and C, D, E (False) together
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