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Dynamic Web Module 3.1 requires Java 1.7 or newer http://crunchify.com/how-to-solve-dynamic-web-module-3-1-requires-java-1-7-or-newer-in-eclipse/ No m 阅读全文
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October 27, 2015· bySrinivas· inMongoDBMongoDB replica sets provide a number of features that most MongoDB users are going to want to leverage. Best o... 阅读全文
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I had similar problem which was resolved by taking two steps :1A. DELETE THE REGISTRY KEY :32-bit machine>[HKEY_CURRENT_USER\Software\Microsoft\Window... 阅读全文
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To configure Hive for use with HiveServer2, include the following configuration properties in the .../hive-site.xmlconfiguration file. hive.support.c... 阅读全文
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HIVEMap Join is nothing but the extended version of Hash Join of SQL Server - just extending Hash Join into Distributed System.SMB(Sort Merge Bucket)J... 阅读全文
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数据文件内容TEST DATA HEREGood to Go我们准备写一个函数,把所有字符变为小写.1.开发UDFpackage MyTestPackage;import org.apache.hadoop.hive.ql.exec.UDF;import org.apache.hadoop.io.T... 阅读全文
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14 down vote It's the other way round. Number of mappers is decided based on the number of splits. In reality it is the job of InputFormat, which you ... 阅读全文
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While data integrity is managed very effectively within a single database with row locking, deadlock detection, and roll-back features, distributed da... 阅读全文
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Answer:I understand the IEnumerator/IEnumerable methods and properties and also how they are interrelated. But I fail to understand from the foreach loop perspective. Say for example, if I say the following line of code, how does the compiler look at foreach loop and break it down to IEnumerable/IEn 阅读全文
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The following string “_x003C_none_x003E_” may be included in the output file. If you are receiving this error or other strange flat file results when outputting xml results; it may be due to the values you have set in the flat file connection properties. 1. Right Click on the connection manager icon 阅读全文
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Non-clustered The data is present in random order, but the logical ordering is specified by the index. The data rows may be randomly spread throughout the table. The non-clustered index tree contains the index keys in sorted order, with the leaf level of the index containing the pointer to the page 阅读全文