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...
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. ...
The syntax is shown below. Here is the extracted SQL code and the result set: SQL Query: SELECT PRODUCT_ID, PACKAGE_ID, NVL(PACKAGE_ID, 0) FROM PRODUCT; Analysis of the Query: The NVL function substitutes null values with a specified default. In this case, NVL(PACKAGE_ID, 0)...
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)(...
decode函数 转mysql 数据库 SQL SYS h5 转载 goody 2024-03-08 13:08:25 72阅读 decode函数 mysql # 解析函数 MySQL MySQL是一种广泛使用的关系型数据库管理系统,它提供了许多内置函数来处理和操作数据。其中之一是解析函数(Decode Function),它用于将一种值转换为另一种值。在本文中,我们将深入探讨MySQL中...
错误号1564; 符号: ER_PARTITION_FUNCTION_IS_NOT_ALLOWED; SQLSTATE:HY000 消息:不允许使用此分区功能 错误号1565; 符号: ER_DDL_LOG_ERROR; SQLSTATE: HY000 消息:DDL日志中的错误 ER_DDL_LOG_ERROR 在8.0.1之后被删除。 错误号1566; 符号: ER_NULL_IN_VALUES_LESS_THAN; SQLSTATE:HY000 ...
The SUBSTR function returns a string as output. So, I believe the correct syntax for the mapping of the column LEVEL1, in your case, would be: DECODE( (SUBSTR(PC.PC,1,1) = '0'), '', SUBSTR(PC.PC,1,1)||'000' ) Regards, Leo. Former Member 2012 Aug 28 0 Kudos Thanks...
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] ) ...
Table 6-3 Parameters of the USERENV Function Parameter Return Value CLIENT_INFO CLIENT_INFO returns up to 64 bytes of user session information that can be stored by an application using the DBMS_APPLICATION_INFO package. Caution: Some commercial applications may be using this context value. Check...