For more information, see Supported Oracle functions. POSITION Returns the position of a substring in a string. PARSE_IDENT Parses a string that follows the rules for SQL identifiers. QUOTE_IDENT Returns a string as a quoted identifier in an SQL statement. QUOTE_LITERAL Returns a string...
For example, SQL Server returns a 4-digit SOUNDEX code; Oracle returns a phonetic representation of each word. SPACE( count ) (ODBC 2.0) Returns a character string consisting of count spaces. SUBSTRING( string_exp, start, length**)** (ODBC 1.0) Returns a character string that is derived ...
Why use string functions String functions allow you to manipulate string data (i.e. data made of text). Tableau uses the current International Components for Unicode (ICU) library when comparing strings. The way strings are sorted and compared is based both on language and locale, and it’s ...
String functions perform various character manipulations, and they operate on character strings. ASCII Converts a single character string to its corresponding ASCII code, between 0 and 255. Syntax: ASCII (character_expression) where: character_expression Any expression that evaluates to an ASCII charact...
Using the Oracle SUBSTR() function with aggregate functions# The following statement uses theSUBSTR()with theCOUNT()functions get initials from first names and the number of employees per initial: SELECTSUBSTR( first_name,1,1) initials ,COUNT( * )FROMemployeesGROUPBYSUBSTR( first_name,1,1)ORDER...
Oracle Database - Enterprise Edition - Version 11.2.0.4 and later: ORA-12702: Invalid NLS Parameter String Used In SQL Function in Datapump export
Bit Functions and Operators Encryption and Compression Functions Locking Functions Information Functions Spatial Analysis Functions JSON Functions Replication Functions Aggregate Functions Window Functions Performance Schema Functions Internal Functions Miscellaneous Functions Precision Math SQL Statem...
Oracle SQL includes one other INSTR variant which you should know about, and which can be of considerable value, as long as you are familiar with regular expressions. The REGEXP_INSTR functions uses a regular expression rather than a substring, and includes some extended search options, allowing...
XML Functions Bit Functions and Operators Encryption and Compression Functions Locking Functions Information Functions Spatial Analysis Functions JSON Functions Functions Used with Global Transaction Identifiers (GTIDs) Aggregate Functions Miscellaneous Functions Precision Math SQL Statements The ...
参考官方文档地址https://learn.microsoft.com/zh-cn/sql/t-sql/functions/string-split-transact-sql?view=sql-server-ver16 2、语法 STRING_SPLIT ( string , separator [ , enable_ordinal ] ) 1. 3、参数 string 任何字符类型(例如 nvarchar、varchar、nchar 或 char)的表达式。