(1, '(123) 456-7890', 'user@example.com'), (2, '123.456.7890', 'user\_name@example'), (3, '123-456-7890', 'user@example,com'); \-- 清洗电话号码,只保留数字 UPDATE user\_info SET phone\_number = regexp\_replace(phone\_number, '\[^0-9]', '', 'g'); \-- 清洗邮箱...
This example replaces the word "world" with "universe" in the given string, resulting in "hello universe". 2. Case Insensitive Replacement SELECT REGEXP_REPLACE('Hello World', 'world', 'universe', 'i'); Using the 'i' flag, this example performs a case-insensitive replacement, transforming...
AI检测代码解析 importpyhiveimportpandasaspddefprocess_data_in_batches(connection,batch_size):query="SELECT * FROM original_table"df=pd.read_sql(query,connection)foriinrange(0,len(df),batch_size):batch=df.iloc[i:i+batch_size]# Perform the regexp_replace operation on this batch# Save or pr...
CREATE TABLE regexp_temp(empName varchar2(20), emailID varchar2(20)); INSERT INTO regexp_temp (empName, emailID) VALUES ('John Doe', 'johndoe@example.com'); INSERT INTO regexp_temp (empName, emailID) VALUES ('Jane Doe', 'janedoe@example.com'); 次の文は、文字列'Jane'を'John...
REGEXP_REPLACE 是BigQuery 中的一个字符串函数,用于在字符串中查找匹配正则表达式的子串,并将其替换为指定的字符串。该函数支持引用捕获组,即在正则表达式中使用括号捕获的子串可以通过 \n 的形式在替换字符串中引用。 相关优势 灵活性:通过正则表达式,可以精确地匹配和替换复杂的字符串模式。 捕获组引用:允...
regexp_replace(string INITIAL_STRING, string PATTERN, string REPLACEMENT) Returns the string resulting from replacing all substrings in INITIAL_STRING that match the java regular expression syntax defined in PATTERN with instances of REPLACEMENT. For example, regexp_replace("foobar", "oo|ar", ""...
The following example matches the string times and replaces it with the string days. Matching begins at the first character in the string and replaces the second occurrence of the substring: SELECT REGEXP_REPLACE('It was the best of times, it was the worst of times', 'times', 'days',...
1.目的 在某些情况下,我们希望在查询中使用 IN 子句来匹配 JSON 数组中的元素。例如,我们有一个包含用户 ID 的 JSON 数组 [1, 2, 3],我们希望查询所有这些用户的信息。...JSON_TABLE 函数接受一个 JSON 数组和一个列名,将 JSON 数组的每个元素作为一行返回。然后我们
The value for n must be in the range 0-9 and not greater than the number of capture groups in the pattern (SQLSTATE 2201V). For example, either '$2' or '\2' can be used to refer to the content found in the source string for the second capture group that is specified in the ...
REGEXP_REPLACE(source_char, pattern [, replace_string [, position [, occurrence [, match_param ] ] ] ] ) Parameters Return type The return type is the same as the data type ofsource_char. Examples The following example replaces, with*, all characters inOCEANBASE databasethat match(A|B...