What should be the return type for a cursor variable.Can we use a scalar data type as return type 相关知识点: 试题来源: 解析 REF CURSOR必须是记录类型或行类型,不能使用标量数据类型 在PL/SQL中,游标变量(即REF CURSOR)必须定义返回的数据结构类型。根据规范: 1.
A quantity that doesn’t rely on direction is a scalar quantity, according toNASA. Dot products and cross products How do vector operations work, besides the fact that in vector math, you can use real numbers and get the results of applying vector addition, vector subtraction, and multiplicati...
A dependent variable is a scalar in an equation that derives its values from the independent scalar. When a change occurs, the...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough...
If a model includes only one predictor variable (p = 1), then the model is called a simple linear regression model. In general, a linear regression model can be a model of the formyi=β0+K∑k=1βkfk(Xi1,Xi2,⋯,Xip)+εi, i=1,⋯,n, where f (.) is a scalar-valued fu...
C/C++ : converting std::string to const char* I get the error : left of '.c_str' must have class/struct/union type is 'char *' C# to C++ dll - how to pass strings as In/Out parameters to unmanaged functions that expect a string (LPSTR) as a function parameter. C++ int to str...
NDB 8.0 makes the following changes in platform support: NDBCLUSTER no longer supports 32-bit platforms. Beginning with NDB 8.0.21, the NDB build process checks the system architecture and aborts if it is not a 64-bit platform. It is now possible to build NDB from source for 64-bit ...
ADD and SUBTRACT depending on the condition is CASE STATEMENT ADD COLUMN to variable table? Add prefix in data column Add Time in SQL HH:MM:SS to another HH:MM:SS Adding a column to a large (100 million rows) table with default constraint adding a extra column in a pivot table cr...
PSCAD now recovers properly if a task crashes during an Intelligent Parallel Multiple Run (PMR-I) (formerly Root Control) simulation (#5848). The order in which graphs appear in graph panels, and the order in which control interfaces appear in control panels, is now properly saved with the...
ISO is .1 ORGANIZATION is .3 DOD is .6 INTERNET is .1 MGMNT is .2 MIB-2 is .1 SYSTEM is .1 sysDescr is .1 SNMP Versions SNMP has three versions: SNMPv1, SNMPv2c, and SNMPv3. SNMPv1 SNMPv1 is the first version of the protocol. It is easy to set up and is defined in RFC ...
A scalar, array, or hash variable is an expression: $price, @links, %siteRanks, ... An arithmetic operation is an expression: 1+2, 1/3, $price * 5, ... A string concatenation operation is an expression: "Hello ".$name, ... ...