【转】Oracle/PLSQL: Decode Function 文章转自: 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. searchi...
E Oracle SQL Reserved Words and Keywords F Extended Examples Index DECODE Syntax Description of the illustration decode.eps Purpose DECODE compares expr to each search value one by one. If expr is equal to a search, then Oracle Database returns the corresponding result. If no match is fou...
下面先说明一下instr()的功能和语法:(函数的语法是从http://www.techonthenet.com/oracle/functions/index.htm处得到的,相当清晰明了:) In Oracle/PLSQL, the instr function returns the location of a substring in a string. The syntax for the instr function is: instr (string1, string2, [start_p...
Question: What is the purpose of the DECODE Function in Oracle? 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, ...
This Oracle tutorial explains how to use the Oracle / PLSQL DECODE function with syntax and examples. The Oracle / PLSQL DECODE function has the functionality of an IF-THEN-ELSE statement.
[Oracle] decode函數使用 ※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] )...
IF 3 = 1 THEN RETURN 'One'; ELSIF 3 = 2 THEN RETURN 'Two'; ELSE 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: ...
sql NANVL( n1 , n2 ) 考虑以下名为 nanvl_demo 的表格: 示例– ```sql SELECT bin_float, NANVL(bin_float,0) FROM nanvl_demo; ``` 输出: 参考:Oracle 9i SQL 入门(第 1 册) 版权属于:月萌API www.moonapi.com,转载请注明出处 本文链接:https://www.moonapi.com/news/27395.html留言...
Oracle/PLSQL: Decode Function Oracle/PLSQL: Decode Function 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] )...
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