getable

() method again, causing the resource to be repeatedly fetched the key to solving the aforementioned problem is to introduce synchronization control logic between threads, bysynchronizedKeyword lock Shared object method name before adding synchronized keyword tag with synchronized (object) {...} Tag locked code when a thread executes code that is controlled by the Synchronized keyword, the shared object is locked. If the other thread needs to manipulate the object, it must wait for the thread t

:// WebOperationContext. Current. OutgoingResponse. ContentType = "text/xml ";[OperationContract][WebGet (RequestFormat = WebMessageFormat. Json, ResponseFormat = WebMessageFormat. Json)]// [WebInvoke (Method = "GET", RequestFormat = WebMessageFormat. Json, ResponseFormat = WebMessageFormat. Json, BodyStyle = WebMessageBodyStyle. WrappedRequest)]Public DataTable GetDataTable (string pz){// Add operation implementation hereDataSet ds = WebBase. GetDS (WebBase. meinvRepository, string. Empty, "bod

Intent to convert the interface of one class into another interface that the client wants.　　The Adapter mode makes it possible for those classes that would otherwise not work together because of incompatible interfaces to work together. Mainly divided into three categories:The adapter mode of the class, the adapter mode of the object, the adapter mode of the interface。 1. The adapter mode of the class has a source class, has a method, is ready to be fitted, the target interface is targetable, th

= WebMessageBodyStyle. WrappedRequest)]Public DataTable GetDataTable (string pz){// Add operation implementation hereDataSet ds = WebBase. GetDS (WebBase. meinvRepository, string. Empty, "body_id desc", pz );If (ds. Tables. Count> 0)Return ds. Tables [0];Return null;} // Add more operations here and mark them with [OperationContract]} For details, the getable able method of wcf has a parameter pz indicating the number of rows of returned data. The re

extends leldt = New Datatable (); 19 Adapert. Fill (oracleldt ); 20 Return Oracleldt; 21 } 22 } 23 } 24 } when the database is SQL Server, call the sqldbhelper method getdatatable (). When the database is Oracle, I call the getable able () method of oracledbhelper. Therefore, we need to write two different data operation classes here. I don't think it is very good. After searching, I found a method in the c

. Steve peschka does not describe how to paging in the White Paper. Simply put, if we use getitems to return all data to a splistitemcollection or further getable able to a datatable, and then pagination. This only reduces the time between render and the page display time, and does not really reduce the time for accessing the database and the time when data is transmitted from the database to the application server. How can we effectively access data

= WebMessageBodyStyle. WrappedRequest)]Public DataTable GetDataTable (string pz){// Add operation implementation hereDataSet ds = WebBase. GetDS (WebBase. meinvRepository, string. Empty, "body_id desc", pz );If (ds. Tables. Count> 0)Return ds. Tables [0];Return null;}// Add more operations here and mark them with [OperationContract]} For details, the getable able method of wcf has a parameter pz indicating the number of rows of returned data. The ret

, Order_date DATE, Total_amount NUM BER, custotmer_id number (7), PAID CHAR (1)) PartitiOn by RANGE (order_date) (PARTITION ord_act_part01 VALUES less THAN (to_date (' 01-may-2003 ', ' dd-mon-yyyy ')) Tablespaceor D_ts01, PARTITION ord_act_part02 VALUES less THAN (to_date (' 01-jun-2003 ', ' dd-mon-yyyy ')) tablespace ord_ts02, PARTITION ord_act_part02 VALUES Less THAN (to_date (' 01-jul-2003 ', ' dd-mon-yyyy ') tablespace Ord_ts03) example three: MAXVALUE CREATE TABLE Ran