The syntax for the DUMP function in Oracle/PLSQL is: DUMP( expression [, return_format] [, start_position] [, length] ) Parameters or Arguments expression The expression to analyze. return_format Optional. It determines the format of the return value. This parameter can be any of the foll...
默认是返回全部。 Ifexpris null, then this function returnsNULL. 如果表达式为NULL则函数返回NULL。 This function does not supportCLOBdata directly. However,CLOBs can be passed in as arguments through implicit data conversion. 此函数不直接支持CLOB数据。然而,CLOB可以作为参数通过隐式转换传入。 例子 SEL...
or 0xFF for NULLs. The actual data bytes for non-null numbers represent the value in scientific notation. For example, the number 12.3 is represented as +0.123 * 10². The high order bit of the first byte represents the sign. The sign bit is set for ...
Ifexpris null, then this function returnsNULL. This function does not supportCLOBdata directly. However,CLOBs can be passed in as arguments through implicit data conversion. See Also: Data Type Comparison Rulesfor more information Appendix C inOracle Database Globalization Support Guidefor the colla...
The argumentsstart_positionandlengthcombine to determine which portion of the internal representation to return. The default is to return the entire internal representation in decimal notation. Ifexpris null, then this function returnsNULL. select dump(test_col) from test_tb; ...
链接:https://www.eygle.com/archives/2005/11/how_to_use_oracle_dump_function.html DUMPreturns aVARCHAR2value containing the datatype code, length in bytes, and internal representation ofexpr. The returned result is always in the database character set. ...
In this tutorial, you will learn how to use the Oracle DUMP() function to find the data type, length, and internal representation of an expression.
10146 Enable Oracle TRACE collection 10148 Use pre-7.3.3 random generator 10149 Allow the creation of constraints with illegal date constants 10150 Import exceptions 10151 Force duplicate dependency removal 10152 CBO don't consider function costs in plans 10153 Switch to use public synonym if private...
6、n;eSET EVENTS immediate trace name errorstack level n;1 level 0 + function call stack2 level 1 + pros se3 level 2 + context area11).HangysisALTER SES12).Work AreaALTER SES1 SGA 信息SET EVENTS immediate trace name hangyze level n;SET EVENTS immediate trace name workareatab_dump leve...
转载-Oracle 常用的dump命令 Oracle 跟踪事件 set event 事件 说明 例子 Event 10013 - Monitor Transaction Recovery 在Startup时跟踪事务恢复 ALTER SESSION SET EVENTS '10013 trace name context forever, level 1'; Event 10015 - Dump Undo Segment Headers-...