The DECODE function in Oracle is a versatile and powerful tool that allows users to perform conditional transformations on data within an SQL query. It is similar to the CASE statement, but it offers a more compact syntax, making it a popular choice for simplifying complex queries and improving...
In Oracle/PLSQL, thedecodefunction has the functionality of an IF-THEN-ELSE statement. The syntax for thedecodefunction is: decode( expression , search , result [, search , result]… [, default] ) expressionis the value to compare. searchis the value that is compared againstexpression. res...
Introduction to Oracle DECODE() function# The OracleDECODE()function allows you to add the proceduralif-then-elselogic to the query. In the following example, the OracleDECODE()function compares the first argument (1) with the second argument (1). Because they are equal, the function returns ...
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InOracle/PLSQL,theinstrfunctionreturnsthelocationofasubstringinastring. Thesyntaxfortheinstrfunctionis: instr(string1,string2,[start_position],[nth_appearance]) string1isthestringtosearch. string2isthesubstringtosearchforinstring1. start_positionisthepositioninstring1wherethesearchwill start.Thisargumentis...
oracle max(decode用法 oracle max(decode用法 In Oracle, the MAX function can be used in combination with the DECODE function to return the maximum value from a set of different values based on specified conditions.The syntax for using MAX and DECODE together is:```SELECT MAX(DECODE(condition, ...
Simple CASE expressions use expressions to determine the returned value and have the following syntax: CASE search_expression WHEN expression1 THEN result1 WHEN expression2 THEN result2 ... WHEN expressionN THEN resultN ELSE default_result
The decode function can be used in SQL for and IF-THEN-ELSE construction. It's an alternative for the CASE statement which was introduced in Oracle 8. Syntax: decode( expression , compare_value, return_value, [,compare, return_value] ... [,default_return_value] ) ...
In Oracle/PLSQL, the decode function has the functionality of an IF-THEN-ELSE statement. The syntax for the decode function is: decode( expression , search , result [, search , result]... [, defaul ...
Oracle中decode函数用法 含义解释:decode(条件,值1,返回值1,值2,返回值2,...值n,返回值n,缺省值)该函数的含义如下:IF 条件=值1 THEN RETURN(翻译值1)ELSIF 条件=值2 THEN RETURN(翻译值2) ...ELSIF 条件=值n THEN RETURN(翻译值n)ELSE RETURN(缺省值)END IFdecode(字段或字段的运算,值 字段 ...