ASP.NET Web PDF Document Viewer/Editor Control Library

Instead of providing some smart features to handle a StackOverflowException, version 2.0 of the CLR comes with a feature that tries to forecast the lack of stack space so that a StackOverflowException is thrown before you actually start executing critical code. To achieve this, the code can be modified like this: XYZConnection() { using System::Runtime::CompilerServices::RuntimeHelpers; RuntimeHelpers::PrepareConstrainedRegions(); try {} finally { xyzHandle.Handle = ::XYZConnect(); } } The same approach can also be used for the cleanup code inside the XYZHandle class: ~XYZHandle() { using System::Runtime::CompilerServices::RuntimeHelpers; RuntimeHelpers::PrepareConstrainedRegions(); try {} finally { if (hxyz) { ::XYZDisconnect(hxyz); hxyz = 0; } } GC::KeepAlive(this); } The pattern used here is called a constrained execution region (CER). A CER is a piece of code implemented in a finally block that follows a try block that is prefixed with a call to PrepareConstrainedRegions. From the namespace name System::Runtime::CompilerServices, you can assume that the intention of the CLR developers was that .NET languages should hide this construct behind nicer language features. Future versions of the C++/CLI compiler will hopefully allow you to write the following code instead: // not supported by Visual C++ 2005, but hopefully in a later version __declspec(constrained) XYZConnection() { xyzHandle.Handle = ::XYZConnect(); }

how to make barcodes in excel mac 2011, formula to create barcode in excel 2010, barcode font for excel free, generate barcode in excel 2003, barcode font for excel 2010 free, barcode generator excel 2007, free barcode generator excel 2007, barcode add in excel 2010 free, how to create barcodes in excel 2010 free, free barcode fonts for microsoft office,

You can specify that Oracle should evaluate the rules in either of the following two ways: SEQUENTIAL_ORDER: Oracle will evaluate a rule in the order it appears in the MODEL clause. SEQUENTIAL_ORDER is the default order of processing rules in a MODEL clause. AUTOMATIC_ORDER: Rather than evaluating a rule based on its order of appearance in a list of several rules, Oracle will evaluate the rule on the basis of the dependencies between the various rules in the MODEL clause. If rule A depends on rule B, Oracle will evaluate rule B first, even though rule A appears before rule B in the list of rules under the RULES keyword.

As its output, the MODEL clause will give the results of applying your rules to the multidimensional arrays it created from your table data. A MODEL-based SQL analytical query typically uses an ORDER BY clause at the very end of the query to precisely order its output. You can use the optional RETURN UPDATED ROWS clause after the MODEL keyword to specify that only the new values created by the MODEL statement should be returned. These new values may be either updated values of a column or newly created rows. Note that when I say that the MODEL clause will create or update rows, I strictly mean that the changes are shown in the MODEL clause output. The MODEL clause doesn t update or insert rows into the table or views. To change the base table data, you must use the traditional INSERT, UPDATE, or MERGE statement.

The bc utility is an arbitrary-precision calculator. This means the precision of the answer can be set at runtime through the use of the scale operator. Most of the mathematical shell utilities described up to this point focus on operations on whole numbers. The exception is the special library of functions available in ksh. With bc, you can set the scale (number of decimal places following the decimal point) so that results will be expressed as floatingpoint numbers of the precision you specify. The functional use of bc is very similar to the use of expr, as the following list shows: Addition: answer=`echo "$c+$d" | bc` Subtraction: answer=`echo "$c-$d" | bc` Multiplication: answer=`echo "$c*$d" | bc` Division: answer=`echo "$c/$d" | bc` Remainder: answer=`echo "$c%$d" | bc` Exponentiation: answer=`echo "$c^$d" | bc` Scale: The scale of a floating-point number is the number of digits that follow the decimal point. To set the scale when performing a calculation, you use answer=`echo "scale=5;$c/$d" | bc`. Trigonometric functions: To use the trigonometric functions, you must enable the math library by invoking bc using the -l switch. When the library is enabled, the default scale is set to 20 decimal places. The following examples set the scale to 5 places: Sine in radians: answer=`echo "scale=5;s($a)" | bc -l` Cosine in radians: answer=`echo "scale=5;c($a)" | bc -l` Arctangent in radians: answer=`echo "scale=5;s($a)" | bc -l`

Let s look at a simple SQL example that demonstrates the capabilities of the MODEL clause. Here s the query: SQL> SELECT country, product, year, sales FROM sales_view WHERE country IN ('Mexico', 'Canada') MODEL PARTITION BY (country) DIMENSION BY (product, year) MEASURES (sale sales) RULES (sales['ProductA', 2005] = sales['ProductA', 2004] + sales['ProductA',2003], sales['ProductB', 2005] = sales['ProductB', 2004], sales['All_Products', 2005] = sales['ProductA', 2005] + sales['ProductB',2005]) ORDER BY country, product, year;