在pyspark中,存在与Oracle中的Substr函数等价的函数,即substring函数。substring函数用于从一个字符串中提取子字符串。 函数语法: substring(str, pos, len) 参数说明: str:要提取子字符串的源字符串。 pos:子字符串的起始位置,从1开始计数。 len:要提取的子字符串的长度。
Column.startswith()function in PySpark is used to check if the DataFrame column begins with a specified string. When used withfilter() or where()functions, this returns only the rows where a specified substring starts with a prefix. Apache Spark 3.5 released a new function,pyspark.sql.function...
String Operations String Filters # Contains - col.contains(string)df=df.filter(df.name.contains('o'))# Starts With - col.startswith(string)df=df.filter(df.name.startswith('Al'))# Ends With - col.endswith(string)df=df.filter(df.name.endswith('ice'))# Is Null - col.isNull()df=...
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