BASE64 encoding takes 3 Bytes of input stream and converts it to 4 * 3 Bytes. Each of these 3 Bytes are mapped to 64 different characters (a-z, A-Z, 0-9, "+", "/" - thus you get name BASE64). Ensure that value of substring_length is a whole multiple of 4 for BASE64_DECODE, resp. a whole multiple of 3 for BASE64_ENCODE. WebFeb 9, 2024 · 9.4.1. format. This section describes functions and operators for examining and manipulating string values. Strings in this context include values of the types character, character varying, and text. Except where noted, these functions and operators are declared to accept and return type text. They will interchangeably accept character varying ...
oracle中all、any函数怎么使用 - 开发技术 - 亿速云
WebJul 30, 2009 · cardinality (expr) - Returns the size of an array or a map. The function returns null for null input if spark.sql.legacy.sizeOfNull is set to false or spark.sql.ansi.enabled is set to true. Otherwise, the function returns -1 for null input. With the default settings, the function returns -1 for null input. WebOracle的函数分为单行函数、聚合函数和分析函数三大类。 1、单行函数 单行函数应用于SQL语句中时，只能输入一个数据，返回一个结果，常用的单行函数包括字符串函数、数 … great lakes child and adolescent psychiatry
与Hive、MySQL、Oracle内建函数对照表 - Alibaba Cloud
Web1. base64 的解密函数 select utl_raw.cast_to_varchar2(utl_encode.base64_decode(utl_raw.cast_to_raw('dGVzdA=='))) … http://zditect.com/main-advanced/database/4-ways-to-insert-multiple-rows-in-oracle.html floating theatre villa ada