topic Re: program buffering in Application Development and Automation Discussions https://community.sap.com/t5/application-development-and-automation-discussions/program-buffering/m-p/1771717#M333235 <HTML><HEAD></HEAD><BODY><P>hi,</P><P></P><P>Buffering is the property that can be set for a database table. It means that the records of this table are in the buffer for faster access. You can specify whether you want to buffer the entire table or a single record.</P><P></P><P>The Individual Buffering Types :</P><P></P><P>Permanent (P)</P><P>This is the default buffer setting, in which the cross-transaction application buffer is used. For more information about this buffer, see the keyword documentation for EXPORT/IMPORT TO/FROM SHARED BUFFER. The cross-transaction application buffer can contain up to 128 context entries. These entries are structured using a process similar to LRU (Least Recently Used).</P><P></P><P>To display the contents of the context buffer on the current application server, choose Goto ® Display buffer in the Context Builder. The buffer is reset every hour on the hour. You can also reset it manually in the Context Builder by choosing Edit ® Reset buffer. This resets the buffer on all application servers.</P><P></P><P>Temporary (T)</P><P>If you choose this buffer type, the derived data is only buffered within a transaction. Within a transaction the buffer can contain up to 1024 entries. These entries are exported in bundles into the cross-transaction application buffer. The results of the various instances of a context are stored in the same buffer within the program.</P><P></P><P>No buffer (N)</P><P>If you choose No buffer, the derived data is not buffered. If you use this buffering type for all modules in a context, using the context will not improve system performance, but is merely a way of re-using program logic.</P><P></P><P>Permanent buffering can lead to problems when you are testing your Customizing settings. The Context Builder therefore allows you to de-activate the context buffer (buffering type P) during the current terminal session. To do this, choose Settings ® Buffering. The system displays a dialog box. Select Inactive, and choose Continue. You can activate or de-activate the context buffer for a particular user by setting the user parameter BUF to Y or SPACE (default) or N using the Maintain users transaction (SU01).</P><P></P><P></P><P>Regards,</P><P>Vinod</P><P></P></BODY></HTML> Fri, 15 Dec 2006 16:59:44 GMT Former Member 2006-12-15T16:59:44Z program buffering https://community.sap.com/t5/application-development-and-automation-discussions/program-buffering/m-p/1771716#M333234 <HTML><HEAD></HEAD><BODY><P>what is program buffering?</P></BODY></HTML> Fri, 15 Dec 2006 16:57:43 GMT https://community.sap.com/t5/application-development-and-automation-discussions/program-buffering/m-p/1771716#M333234 Former Member 2006-12-15T16:57:43Z Re: program buffering https://community.sap.com/t5/application-development-and-automation-discussions/program-buffering/m-p/1771717#M333235 <HTML><HEAD></HEAD><BODY><P>hi,</P><P></P><P>Buffering is the property that can be set for a database table. It means that the records of this table are in the buffer for faster access. You can specify whether you want to buffer the entire table or a single record.</P><P></P><P>The Individual Buffering Types :</P><P></P><P>Permanent (P)</P><P>This is the default buffer setting, in which the cross-transaction application buffer is used. For more information about this buffer, see the keyword documentation for EXPORT/IMPORT TO/FROM SHARED BUFFER. The cross-transaction application buffer can contain up to 128 context entries. These entries are structured using a process similar to LRU (Least Recently Used).</P><P></P><P>To display the contents of the context buffer on the current application server, choose Goto ® Display buffer in the Context Builder. The buffer is reset every hour on the hour. You can also reset it manually in the Context Builder by choosing Edit ® Reset buffer. This resets the buffer on all application servers.</P><P></P><P>Temporary (T)</P><P>If you choose this buffer type, the derived data is only buffered within a transaction. Within a transaction the buffer can contain up to 1024 entries. These entries are exported in bundles into the cross-transaction application buffer. The results of the various instances of a context are stored in the same buffer within the program.</P><P></P><P>No buffer (N)</P><P>If you choose No buffer, the derived data is not buffered. If you use this buffering type for all modules in a context, using the context will not improve system performance, but is merely a way of re-using program logic.</P><P></P><P>Permanent buffering can lead to problems when you are testing your Customizing settings. The Context Builder therefore allows you to de-activate the context buffer (buffering type P) during the current terminal session. To do this, choose Settings ® Buffering. The system displays a dialog box. Select Inactive, and choose Continue. You can activate or de-activate the context buffer for a particular user by setting the user parameter BUF to Y or SPACE (default) or N using the Maintain users transaction (SU01).</P><P></P><P></P><P>Regards,</P><P>Vinod</P><P></P></BODY></HTML> Fri, 15 Dec 2006 16:59:44 GMT https://community.sap.com/t5/application-development-and-automation-discussions/program-buffering/m-p/1771717#M333235 Former Member 2006-12-15T16:59:44Z