结合使用SubStr_RegExpr和Series_Generate_Integer到split string using SQLScript in HANA可以描述性地理解series_generate函数的用法 代码语言:javascript 复制 declare pString nvarchar(5000); pString := 'msdfmsfmdf PT2222, ST 43434 asdasdas'; select STRING_AGG(SUBSTR_REGEXPR( '([PpSs][Tt][Ss]?\w?
聚合函数CORR_SPEARMAN1.0, 2.0 聚合函数COUNT1.0, 2.0 聚合函数MAX1.0, 2.0 聚合函数MEDIAN1.0, 2.0 聚合函数MIN1.0, 2.0 聚合函数STDDEV1.0, 2.0 聚合函数STDDEV_POP1.0, 2.0 聚合函数STDDEV_SAMP1.0, 2.0 聚合函数STRING_AGG1.0, 2.0不支持ORDER BY语句 ...
这可以使用正则表达式完成: select substr_regexpr( '.*-([^-]*-[^-]*)$' in 'varia-ble---part-part1-part2' group 1) from dummy; select substr_regexpr( '.*-([^-]*-[^-]*)$' in 'variable-part-part1-part2' group 1) from dummy; 根据HANA 2.0 SP0文档,您可以使用负偏移(然后使...
REPLACE Function (String) REPLACE_REGEXPR Function (String) RIGHT Function (String) RPAD Function (String) RTRIM Function (String) SOUNDEX Function (String) STRTOBIN Function (String) SUBSTR_AFTER Function (String) SUBSTR_BEFORE Function (String) SUBSTRING Function (String) SUBSTRING_REGEXPR Function...
SUBSTR_REGEXPR( '[,][^,]*[?=,]' IN CONCAT(CONCAT(',',pString),',') ) from dummy; Code You see we have extracted "Yoda" out of the pString SQLScript string variable. This is the first occurrence of the searched pattern.
selectcasewhenlength(replace_regexpr('[^0-9]'in:i_matnr))=length(:i_matnr)thenleft('000000000000000000',18-length(:i_matnr))||(:i_matnr)else:i_matnr end into o_matnr from dummy;elseselect:i_matnr into o_matnr from dummy;endif;end; ...
, OCCURRENCES_REGEXPR('[|]' IN GENRES) + 1 "GENRE_COUNT" , "GENRES" FROM "MOVIELENS"."public.aa.movielens.hdb::data.MOVIES" ORDER BY "GENRE_COUNT" ASC; 练习5:罗列出每部电影的风格分布情况 SELECT "GENRE_COUNT" , COUNT(1) FROM ( ...
SELECT"GENRE_COUNT",COUNT(1)FROM(SELECTOCCURRENCES_REGEXPR('[|]'IN"GENRES")+1"GENRE_COUNT"FROM"MOVIELENS"."public.aa.movielens.hdb::data.MOVIES")GROUPBY"GENRE_COUNT"ORDERBY"GENRE_COUNT"; 比如至少拥有1个风格的电影,有2793部,2个风格的电影有3039部,等等。
/* 122. SECOND SECOND() 返回时间的second SECONDS_BETWEEN(<date_1>, <date_2>) 返回两个日期之间秒数 */ SELECTSECOND ('12:34:56')FROMDUMMY;SELECTSECOND ('2014-03-25 12:34:56.789')FROMDUMMY;SELECTSECONDS_BETWEEN ('2009-12-05','2010-01-05')FROMDUMMY; /* 123...
首先我们考虑如何在字符串中删除一个字符。由于字符串的内存分配方式是连续分配的。我们从字符串当中删除...