asp.net free pdf library

download pdf file from folder in asp.net c#

asp.net pdf viewer open source

entity framework mvc pdf

best asp.net pdf library

pdf asp.net c# save tab, pdf download file version word, pdf .net c# ghostscript image, pdf bit converter load windows 8, pdf open protected using word,

how to read pdf file in asp.net using c#, asp.net core pdf editor, rotativa pdf mvc, microsoft azure pdf, print pdf file in asp.net without opening it, asp net mvc show pdf in div, asp.net core pdf editor, asp.net open pdf in new window code behind, azure pdf reader, how to write pdf file in asp.net c#, asp.net print pdf without preview, asp.net pdf viewer annotation, evo pdf asp net mvc, asp net mvc syllabus pdf, how to open pdf file in popup window in asp.net c#

asp.net pdf viewer annotation, azure pdf to image, itextsharp mvc pdf, mvc get pdf, asp.net print pdf directly to printer, read pdf file in asp.net c#, pdf viewer in mvc c#, asp.net pdf writer

return pdf from mvc,
aspx to pdf online,
dinktopdf asp.net core,
asp.net pdf viewer open source,
aspx to pdf online,
download pdf file on button click in asp.net c#,
return pdf from mvc,
asp.net core pdf library,
download pdf using itextsharp mvc,

At the core, connection caching and connection pooling refer to the same concept: pooling physical database connections to be shared across multiple client sessions. Connection caching, usually implemented in the middle tier, refers to the concept of creating a cache of physical connections using the connection pooling framework provided by the JDBC driver. In Oracle9i, we need to create our own cache on top of the connection pooling framework provided by Oracle JDBC drivers. We can use a sample connection cache provided by Oracle as well. In Oracle 10g, the connection cache can be enabled implicitly at the data source level itself, thus obviating the need to maintain or manage our own cache. The next section discusses in detail the Oracle9i implementation of connection pooling and caching.

Is the framework created in this book ideal for every application and every organization Certainly not!.

pdf to excel converter in vb.net, ssrs upc-a, excel barcode 39 font, vb.net gs1 128, asp.net code 39, asp.net ean 128 reader

The Oracle9i connection pooling framework depends on the following key concepts: Connection pool data source: A connection pool data source is similar in concept and functionality to the data sources described in 3, but with methods to return pooled connection objects, instead of normal connection objects. Pooled connection (or physical connection): A pooled connection instance represents a single connection to a database that remains open during use by a series of logical connection instances. Logical connection: A logical connection is a connection instance (such as a standard Connection instance or an OracleConnection instance) returned by a pooled connection instance. It is the pooled connection checked out by an application at a given point in time. When we use connection pooling, we essentially introduce an intermediate step to enable reuse of a physical connection. The connection pool data source returns a pooled connection, which encapsulates the physical database connection. We then use the pooled connection to return JDBC connection instances (one at a time) that each act as a temporary handle (the logical connection). When an application closes the logical connection, it does not result in the closing of the physical database connection. It does, however, clear the connection state, restore the defaults (e.g., it resets autocommit to true if you had set it to false), and mark the underlying physical connection (or pooled connection) as available for creating the next logical instance from the connection pool. To actually close the physical connection, you must invoke the close() method of the pooled connection. This action is typically performed in the middle tier that manages the connection pool, and not by the application.

You ll have to take the architecture and the framework and adapt them to meet your organization s needs. You may have different priorities in terms of performance, scalability, security, fault tolerance, reuse, or other key architectural criteria. At the very least, though, the remainder of this book should give you a good start on the design and construction of a distributed, object-oriented architecture and framework.

Figure 14-3 shows the JDBC interfaces related to connection pooling and their Oracle counterparts. Note that as an application developer, you will typically not deal with the PooledConnection and ConnectionPoolDataSource interfaces described in this section. These interfaces are implemented for you by the connection cache (either the sample Oracle9i connection cache or the implicit connection cache in 10g). So feel free to skip the section Oracle9i Connection Caching if you are not interested in this topic.

Notice the following facts in the preceding data table: The cities and states are contained in the same data field, with several duplicate cities and states listed. The date, high temperature, low temperature, and air quality data fields are presented in a peculiar manner: the weather for four dates is presented in more than four data records; and three city and state combinations are presented in more than three records. Many air quality data field values are repeated.

birt ean 128, birt ean 13, birt qr code download, java ocr pdf example