This tutorial provides a comprehensive guide to using the SQL DECODE() function in Oracle. I will also compare DECODE() to CASE WHEN in Oracle and help you understand when to use each function. Finally, I will provide code for the equivalent transformations in SQL Server, PostgreSQL, and ...
equivalent FORMAT() function in SSIS Error - Cannot map the lookup column, because the column data type is a binary large object block (BLOB). Error - Failure inserting into the read-only column "Adj_ID". Error : Offline Mode is SET to "True" Error : Opening a rowset for "Sheet$"...
In a DECODE function, Oracle considers two nulls to be equivalent. If expr is null, then Oracle returns the result of the first search that is also null. 但是要注意的是,为这条SQL选择索引,只能对id列创建,不能对decode函数创建,因为Oracle不能基于未知的用户输入创建索引数据, 代码语言:javascript ...
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Netezza Performance Server SQL implements the decode function as a variant of a simple case expression, and it is equivalent to the expression “case x when val1 then result 1 when val2 then result 2 else default end.” Except if both x and val1 contain NULL values, unlike a case expres...
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only if you received the object code with such an offer, in accord with subsection 6b. d) Convey the object code by offering access from a designated place (gratis or for a charge), and offer equivalent access to the Corresponding Source in the same way through the same place at no ...
ASCII equivalent is displayed when possible. This option is mainly useful for debugging. Mutually exclusive with --string. -h, --help Display usage information and exit -V, --version Display the version and exit FILES/dev/mem AUTHOR...
Por último, proporcionaré código para las transformaciones equivalentes en SQL Server, PostgreSQL y MySQL. Antes de ver los ejemplos prácticos, te recomiendo que sigas el curso Introducción a Oracle SQL de DataCamp para refrescar tus conocimientos sobre el uso del dialecto PL/SQL. Además...
Netezza Performance Server SQL implements the decode function as a variant of a simple case expression, and it is equivalent to the expression “case x when val1 then result 1 when val2 then result 2 else default end.” Except if both x and val1 contain NULL values, unlike a case expres...