pdf watermark c#

add watermark image to pdf using itextsharp c#

add watermark text to pdf using itextsharp c#

pdf watermark c#

add watermark to pdf c#

itextsharp add annotation to existing pdf c#, pdf annotation in c#, pdf annotation in c#, pdf watermark c#, open pdf and draw c#, convert word to pdf itextsharp c#, itextsharp add annotation to existing pdf c#, pdf annotation in c#, convert pdf to jpg c# itextsharp, itextsharp add annotation to existing pdf c#, ghostscript pdf page count c#, itextsharp add annotation to existing pdf c#, open pdf and draw c#, get coordinates of text in pdf c#, c# parse pdf itextsharp

tiff to pdf .net library, ghostscript pdf to tiff c#, vb.net pdf viewer, pdf viewer winforms control for visual studio, vb.net read pdf into byte array, winforms tiff, itextsharp remove text from pdf c#, how to print pdf directly to printer in c#, convert pdf to image c# ghostscript, convert tiff to gif c#

We ve reached the last piece of the architecture puzzle. We ve investigated the database and the set of physical files that constitute a database. In covering the memory used by Oracle, we ve looked at one half of an instance. The last remaining architectural issue to cover is the set of processes that constitute the other half of the instance. Each process in Oracle will perform a particular task or set of tasks, and each will have internal memory (PGA memory) allocated by it to perform its job. An Oracle instance has three broad classes of processes: Server processes: These perform work based on a client s request. We have already looked at dedicated and shared servers to some degree. These are the server processes. Background processes: These are the processes that start up with the database and perform various maintenance tasks, such as writing blocks to disk, maintaining the online redo log, cleaning up aborted processes, maintaining Automatic Workload Repository (AWR) and so on. Slave processes: These are similar to background processes, but they are processes that perform extra work on behalf of either a background or a server process.

You could take the same exact set of rows and in two different databases, each one running the transactions in exactly the same mix, you could observe different results, just because the rows were in different places on the disk In this case, Oracle chose to restart the update When the row that was Y=5 when you started is found to contain the value Y=10, Oracle will silently roll back your update and restart it assuming you are using READ COMMITTED isolation If you are using SERIALIZABLE isolation, then at this point you would receive an ORA-08177: can't serialize access error for this transaction In READ COMMITTED mode, after the transaction rolls back your update, the database will restart the update (ie.

easy pdf text replace online, how to convert word to pdf in mobile online, pdf merge software free online, extract images from pdf online, convert pdf to scanned image online, extract text from pdf online

Some of these processes, such as the database block writer (DBWn) and the log writer (LGWR), have cropped up already, but here we ll take a closer look at the function of each, and what each does and why.

, change the point in time at which the update is as of ), and instead of updating the data again, it will go into SELECT FOR UPDATE mode and attempt to lock all of the rows WHERE Y=5 for your session Once it does this, it will run the UPDATE against that locked set of data, thus ensuring this time that it can complete without restarting But to continue on with the but what happens train of thought, what happens if after restarting the update and going into SELECT FOR UPDATE mode (which has the same readconsistent and read current block gets going on as an update does), a row that was Y=5 when you started the SELECT FOR UPDATE is found to be Y=11 when you go to get the current version of it That SELECT FOR UDPDATE will restart and the cycle begins again.

definition of 4 design phase 428 design/implementation mismatch 15 enterprise example 7 implementation 430 designing aspects 430 join point identification 430 underlying technology, choosing 430 logging 154 modularization using AOP 12 modularization using OOP 11 need for additional methods 15 OOP shortcomings 4 pseudo code example 14 recognizing 428 rule of thumb 428 server-side modularization 11 tangling of data members 15 tangling of multiple concerns 15 transaction management, example of 357 weaving 13 cryptography 324

Note When I use the term process in this chapter, consider it to be synonymous with the term thread on

There are two questions to be addressed here two questions that interested me, anyway The first is, Can we observe this Can we see this actually happen And the second is, So what What does this actually mean to us as developers We ll address these questions in turn now..

operating systems where Oracle is implemented with threads (such as Windows). In the context of this chapter, I use the term process to cover both processes and threads. If you are using an implementation of Oracle that is multiprocess, such as you see on UNIX, the term process is totally appropriate. If you are using a single-process implementation of Oracle, such as you see on Windows, the term process will actually mean thread within the Oracle process. So, for example, when I talk about the DBWn process, the equivalent on Windows is the DBWn thread within the Oracle process.

-d ajc option 440 data introduction example of 121 See member introduction 95 database connection identifying 216 resource pooling, and 204 database connection pool capacity 217 implementation of 216 SimpleDBConnectionPool 21 7 timeout 217 database connection pooling aspect 211 223

It is easier to see a restart than you might at first think. We ll be able to observe one, in fact, using a simple one-row table. This is the table we ll use to test with:

replace text in pdf using java, find and replace text in pdf using java, pdf merge javascript, jquery pdf preview plugin