在BigQuery中,regex函数是一种用于处理文本数据的函数,它基于正则表达式模式匹配来搜索、替换和提取数据。regex函数可以在查询中使用,以便根据特定的模式对文本进行匹配和操作。 regex函数的语法如下: REGEXP_CONTAINS(string, pattern):判断字符串是否包含匹配指定模式的子串。
问REGEXP_REPLACE中的大写多个匹配( BigQuery )EN我试图用大写字符串来匹配正则表达式。Chang Stream(变更...
TABLE_QUERY([gdelt-bq:hathitrustbooks], 'REGEXP_MATCH(table_id , r"^192[d]")') In this query, we have not manually used anythreshold value. Thus, the expected result will match the query and deliver the exact value. We are sure that the return value will be identical. OUTPUT: [ {...
[fh-bigquery:github_extracts.contents_net_cs] WHERE REGEXP_MATCH(content, r'\sasync\s|\sawait\s') 1. 2. 3. 4. 我发现有218,643个文件(总共5,885,933个)至少使用一个async、await关键字。 C#开发人员是否喜欢使用“var”关键字? 比async、await关键字使用的更少,只有130,590个文件至少有一个var...
SELECTCount(*) countFROM[fh-bigquery:github_extracts.contents_net_cs]WHEREREGEXP_MATCH(content, r'\sasync\s|\sawait\s') 我发现有218,643个文件(总共5,885,933个)至少使用一个async、await关键字。 C#开发人员是否喜欢使用“var”关键字?
'REGEXP_MATCH(table_id , r"^192[\d]")') TheDISTINCTquantities it returned can be seen below: [ { "authors": "48911", "publishers": "34517", "titles": "77386" } ] As mentioned above, by default, the approximation threshold forDISTINCTqueries is set to1000, but by including the ...
To implement REGEX_MATCH, just pass the column_name as the first argument and the regex pattern as the second argument: SELECT repository_name, repository_size, repository_forks, created_atFROM [bigquery-public-data:samples.github_timeline]WHERE REGEXP_MATCH (repository_name, r'^node-[[:alnum...
SELECT INSTNM, COUNT(display_name) AS numusers FROM `bigquery-public-data`.stackoverflow.users, ch04.college_scorecard_gs WHERE REGEXP_CONTAINS(about_me, INSTNM) GROUP BY INSTNM ORDER BY numusers DESC LIMIT 5 This yields the following:21 RowINSTNMnumusers 1 Institute of Technology 2364 2 Nat...
bigquery:wikipedia.pagecounts_201505] WHERE REG_MATCH(title, 'Red.*t') GROUP BYtitle ORDER BYreq DESC LIMIT 100 7. How was it for you? Did you findReddit in the results? Cost analysis 1. Thislastquery processed 269 GB: More than a quarter of the free monthly terabyte. ...
SELECTREGEXP_EXTRACT(line,r'import ([a-zA-Z0-9\._]*)')class,COUNT(DISTINCTc.id)countFROM`<your_dataset>.contents`c,UNNEST(SPLIT(content,'\n'))lineWHERElineLIKE'import org.gradle.%internal%'GROUPBY1ORDERBYcountDESCLIMIT10; How a given API is used ...