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Java: How to set Precision for double value? [duplicate]
I was working with numbers recently and I had a situation where I want to set the precision of a double value say to 6 digits or 4 digits, depending on the value stored in the database.
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Can you use Microsoft Entity Framework with Oracle? [closed]
...erly OraDirect .NET) now provides support for Entity Framework v4 Release Candidate devart.com/blogs/dotconnect/?p=2062
– Devart
Apr 2 '10 at 11:16
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javascript: Clear all timeouts?
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It need not start at 1. The HTML5 spec says "Let handle be a user-agent-defined integer that is greater than zero that will identify the timeout to be set by this call." which leaves room for the handle to be any positive integer including non-consecutive and non-small integ...
Convert a string to an enum in C#
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In .NET Core and .NET >4 there is a generic parse method:
Enum.TryParse("Active", out StatusEnum myStatus);
This also includes C#7's new inline out variables, so this does the try-parse, conversion to the explicit enum type and init...
Selecting data frame rows based on partial string match in a column
...a data.table (but also remember that subsetting approaches for data.frames and data.tables are not identical):
library(data.table)
mtcars[rownames(mtcars) %like% "Merc", ]
iris[iris$Species %like% "osa", ]
If that is what you had, then perhaps you had just mixed up row and column positions for su...
Return rows in random order [duplicate]
Is it possible to write SQL query that returns table rows in random order every time the query run?
6 Answers
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How to grant remote access to MySQL for a whole subnet?
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EDIT: Consider looking at and upvoting Malvineous's answer on this page. Netmasks are a much more elegant solution.
Simply use a percent sign as a wildcard in the IP address.
From http://dev.mysql.com/doc/refman/5.1/en/grant.html
You can speci...
What's the best name for a non-mutating “add” method on an immutable collection?
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Unless I'm missing it, System.Linq.Enumerable (and Linq in general) only uses Concat() for "sequence + sequence", never "item + sequence". The problem that someone "might expect it to add two lists together rather than adding a single value to the other list" was explici...
Macro vs Function in C
I always saw examples and cases where using a macro is better than using function.
11 Answers
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mysql -> insert into tbl (select from another table) and some default values [duplicate]
..., I am trying to insert into one table selecting values from another table and some default values.
5 Answers
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