标签：style blog http io ar color os 使用 sp
DB2自带了WebService客户端的实现，具体命令如下：
启用命令：
db2enable_soap_udf -n dbName -u uID -p password [-force]
The parameters have the following definitions:
dbName - The database name to be enabled
uID user - ID for accessing the database
password - The password associated with the user ID
-force - Attempts to drop any existing functions.
如：db2enable_soap_udf -n MS_TRD -u zjyw -p 123456
启用成功后，可调用以下API接口：
db2xml.soaphttpv (VARCHAR(256), VARCHAR(256), VARCHAR(3072))
db2xml.soaphttpv (VARCHAR(256), VARCHAR(256), CLOB(1M))
db2xml.soaphttpc (VARCHAR(256), VARCHAR(256), varchar(3072))
db2xml.soaphttpc (VARCHAR(256), VARCHAR(256), CLOB(1M))
db2xml.soaphttpcl ( VARCHAR(256), VARCHAR(256), varchar(3072))
停用命令：
db2disable_soap_udf -n dbName -u uID -p password
调用步骤：
1、测试webService客户端与服务端的连通性
新建test.sql，编写如下代码：
connect to MS_TRD; VALUES db2xml.soaphttpc( ‘http://191.168.0.209:8080/SHCH/services/shch‘, ‘http://191.168.0.209:8080/SHCH/services/shch.shchHttpEndpoint/‘, varchar (‘<SendMessage xmlns="http://axis2.shch.xtp.xquant.com"><action>81</action><requestXml>12345</requestXml></SendMessage>‘ ) );
在DB2命令窗口中执行：db2 -tvf d:\test.sql
成功调用后，就可以继续写DB2函数供存储过程或者触发器调用了
2、新建表TTRD_UDF,具体见使用 DB2 触发器和Java UDF实现业务通知
3、新增10000条测试数据
begin atomic declare v_cnt int; set v_cnt=0; while (v_cnt<10000) do insert into TTRD_UDF(CODE, NAME, REMARK) values (rtrim(char(v_cnt+100000)),‘test‘, ‘-‘); set v_cnt=v_cnt+1; end while; end
4、新建DB2函数
CREATE FUNCTION zjyw.SENDMESSAGE2 (symbol VARCHAR(100)) RETURNS VARCHAR(1000) LANGUAGE SQL CONTAINS SQL EXTERNAL ACTION NOT DETERMINISTIC RETURN VALUES db2xml.soaphttpc( ‘http://191.168.0.209:8080/SHCH/services/shch‘, ‘http://191.168.0.209:8080/SHCH/services/shch.shchHttpEndpoint/‘, varchar (‘<SendMessage xmlns="http://axis2.shch.xtp.xquant.com"><action>81</action><requestXml>‘|| + symbol + ||‘</requestXml></SendMessage>‘ ) ) )
5、新建TTRD_UDF触发器
CREATE TRIGGER ZJYW.AFTER_UPDATE_UFT AFTER UPDATE OF NAME ON ZJYW.TTRD_UDF REFERENCING OLD AS OLDROW NEW AS NEWROW FOR EACH ROW MODE DB2SQL BEGIN ATOMIC IF(NEWROW.NAME<>‘‘) THEN VALUES(SENDMESSAGE2(OLDROW.CODE)); END IF; END;
6、测试批量修改10000条数据性能
update zjyw.TTRD_UDF set NAME=‘TEST2‘
全部执行完成耗时36分17秒，性能很一般。
如果WebService服务端未开启时，触发器会超时等待，实用性比较差。
标签：style blog http io ar color os 使用 sp
原文地址：http://www.cnblogs.com/chugf/p/4164799.html
