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cume_dist - The CUME_DIST function (defined as the inverse of percentile in some statistical books) computes the position of a specified value relative to a set of values. To compute the CUME_DIST of a value x in a set S of size N, you use the formula: CUME_DIST(x) = number ...
UDF(User Defined Function):数据一对一 UDAF(User Defined Aggreation Function):数据多对一 UDTF(User Defined Table-Generating Function):数据一对多 group by / sort by 对函数处理过的别名报错处理,假如:select f(col) as fc, count(*) as cnt from table_name group by fc; 解决方法1,套一层子...
XTS-AES256 decryption Poseidon Hash Algorithm Overview Implementation on FPGA API Functions of ``xf::security`` adler32 adler32 overload (1) adler32 overload (2) adler32 overload (3) blake2b blake2b overload (1) desCbcEncrypt desCbcDecrypt aes128CbcEncrypt aes128CbcDec...
wiki:https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF map,array:https://cwiki.apache.org/Hive/languagemanual-lateralview.html doc下载:http://ishare.iask.sina.com.cn/f/25020082.html 1.内置运算符 1.1关系运算符 1.2算术运算符 ...
CREATE DATABASE/SCHEMA, TABLE, VIEW, FUNCTION, INDEX DROP DATABASE/SCHEMA, TABLE, VIEW, INDEX TRUNCATE TABLE ALTER DATABASE/SCHEMA, TABLE, VIEW MSCK REPAIR TABLE (or ALTER TABLE RECOVER PARTITIONS) SHOW DATABASES/SCHEMAS, TABLES, TBLPROPERTIES, VIEWS, PARTITIONS, FUNCTIONS, INDEX[ES], COLUMNS,...
Apache Hive 2.0.0 发布,数据仓库平台.Hive是一个基于Hadoop的数据仓库平台。通过hive,我们可以方便地进行ETL的工作。hive定义了一个类似于SQL的查询语言:HQL,能 够将用户编写的QL转化为相应的Mapreduce程序基于Hadoop执行。
aes_encrypt(input string/binary, key string/binary) - Encrypt input using AES. AES (Advanced Encryption Standard) algorithm. Key lengths of 128, 192 or 256 bits can be used. 192 and 256 bits keys can be used if Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files ...
现在让我们来一步步实现“HIVE AES_ENCRYPT”: 步骤1:创建函数 在Hive中我们需要创建一个自定义函数来实现AES加密。首先,我们需要在Hive中创建一个自定义函数。以下是创建函数的代码: CREATE FUNCTION AES_ENCRYPT AS 'org.apache.hadoop.hive.ql.udf.generic.GenericUDFAesEncrypt'; ...