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提升大数据分析思想，拥抱大数据未来 - 资讯 - 清泛网 - 专注C/C++及内核技术
...化。获得成功的关键是建立一个全面的数据产业价值链，包括数据发掘、集成和评估，而不是按照传统的做法部署以应用程序为中心的模式。”
对于一个企业来说，理解数据集成的重要性是创造新的价值的前提。假若对数据的...
Check for changes to an SQL Server table?
How can I monitor an SQL Server database for changes to a table without using triggers or modifying the structure of the database in any way? My preferred programming environment is .NET and C#.
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How do I turn on SQL debug logging for ActiveRecord in RSpec tests?
I have some RSpec tests for my models and I would like to turn on SQL ActiveRecord logging just like I see in the Rails server mode. How to do that?
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Java and SQLite [closed]
...se provides. What driver/connector library is out there to connect and use SQLite with Java.
10 Answers
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How to find foreign key dependencies in SQL Server?
..._NAME = PK.TABLE_NAME
You can also view relationships graphically within SQL Server Management studio within Database Diagrams.
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How do I perform an insert and return inserted identity with Dapper?
... as int)", new { Stuff = mystuff});
Note that on more recent versions of SQL Server you can use the OUTPUT clause:
var id = connection.QuerySingle<int>( @"
INSERT INTO [MyTable] ([Stuff])
OUTPUT INSERTED.Id
VALUES (@Stuff);", new { Stuff = mystuff});
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psql invalid command \N while restore sql
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Postgres uses "\N" as substitute symbol for NULL value. But all psql commands starts by backslash "\" symbol. So you can get this messages, when probably copy statement fails, but a loading of dump continues. This message is only false alarm. You have to search a lines before for reason wh...
T-SQL stored procedure that accepts multiple Id values
...itative answer to this question for the last 16 years: Arrays and Lists in SQL Server.
There are at least a dozen ways to pass an array or list to a query; each has their own unique pros and cons.
Table-Valued Parameters. SQL Server 2008 and higher only, and probably the closest to a universal "...
Generate MD5 hash string with T-SQL
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How do you do this in SQL2005? It's not returning properly encoded string...?
– Joshua F. Rountree
Jun 14 '12 at 12:16
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How much size “Null” value takes in SQL Server
... how Access stores NULLs but I wouldn't be surprised if it is different to SQL Server.
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