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...
※引述自http://www.techonthenet.com/oracle/functions/decode.php 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 ...
Oracle/PLSQL syntax of the DECODE functionDECODE( expression_id , search_id , result_id [, search , result]... [, default] )Parameters or argumentsexpression_id –is an expression for comparison. search_id –value that is compared to. result_id –value returned if the expression coincided...
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Understanding the SQL DECODE() Function The DECODE() function is available in the Oracle database and allows you to transform a column using conditional logic. The DECODE() function allows for multiple conditional transformations using one simple query. The syntax of the DECODE() function is as ...
RETURN 'Not one or two';ENDIF;Code language:SQL (Structured Query Language)(sql) Oracle DECODE() function syntax# The following illustrates the syntax of the OracleDECODE()function: DECODE (e , s1, r1[, s2, r2], ...,[,sn,rn] [, d]);Code language:SQL (Structured Query Language)(...
Note: You can change the return value of the AUTHENTICATION_DATA attribute using the length parameter of the syntax. Values of up to 4000 are accepted. This is the only attribute of USERENV for which Oracle implements such a change.
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 ...
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
一)建立存储过程时报SQL错误( have an error in your SQL syntax;...) 建立PROCEDURE等类型过程前需加上delimiter // ,最后也要以// 结尾,例如 delimiter // CREATE PROCEDURE UPDATE_PROCESSDEFID() BEGIN ... mysql decode函数 用法 mysql SQL错误 字符...