通过创建SQLServer 2005到 Oracle10g 的链接服务器实现异构数据库数据转换方案 |
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本文标签：异构数据库,数据转换 1、新建链接服务器 
在图1中选中“链接服务器”，右键选择“新建链接服务器”，如图2，配置相关参数 。 2、配置相关参数
在“常规”选项中，填写“链接服务器名称”，访问接口选中 “ Microsoft OLE DB Provider for Oracle”项 。其中产品名称、数据源、访问接口字符串请填写配置的Oracle客户端在本地配置的net服务名 。如图3所示 。
在“安全性”项中，选中使用此安全上下文建立连接，填写远程登录用户和密码，即登录远程Oracle服务器的用户和密码 。如图4所示 。 3、异构数据库访问语句格式比如我们建立了链接服务器ORADBCONN，而Oracle中在HRSOFT用户下面建立了表WEBUSER，那么我们的SQL语句就是： --清空Oracle表中的数据 DELETE FROM ORADBCONN..HRSOFT.WEBUSER --将SQLServer中的数据写到Oracle中 INSERT into ORADBCONN.. HRSOFT. WEBUSER SELECT * FROM WEBUSER 如果报告成功，那么我们的数据就已经写入到Oracle中了 。 用SELECT * FROM ORADBCONN..HRSOFT.WEBUSER 查看Oracle数据库中是否已经有数据了 。 4、链接服务器应用A、查询Oracle数据表方式一(这种方式，当Oracle与SQLServer的数据类型不一致时经常报错,且速度稍慢)： select * from [LINK2ORACLE]..[ORACLE_USER_NAME].TABLE_NAME; 我在执行该语句经常报类似错误信息：链接服务器 "LINK2ORACLE" 的 OLE DB 访问接口 "MSDAORA" 为列提供的元数据不一致 。对象 ""CMCC"."OS2_GIS_CELL"" 的列 "ISOPENED" (编译时序号为 20)在编译时有 130 的 "DBTYPE"，但在运行时有 5 。 B、查询Oracle数据表方式二(经试验，这种方式使用起来很顺畅，不报错，且速度几乎和在Oralce中一样快)： select * from openquery(LINK2ORACLE,select * from OracleUserName.TableName) 您可以把openquery()当成表来使用 。 C、举个例子（将Oralce用户HRSOFT下的用户表WEBUSER导入到SQLServer2005数据库中）： select * into OS_GIS_WEBUSER from openquery(LINK2ORACLE,select * from HRSOFT. WEBUSER) D、更便捷的方式：通过创建同义词进行便捷查询: CREATE SYNONYM OS_GIS_CELL FOR [ORACLELK]..[CMCC].OS_GIS_CELL; select * from os_gis_cell; select * from os_gis_cell a where a.CellName is null; 注意：涉及 Oracle 部分的 SQL 语句，尤其是 [ORACLELINK]..[ORACLE_USER_NAME].TABLE_NAME 一定要大写，否则会报类似错误： 消息 7314，级别 16，状态 1，第 1 行 链接服务器 "ORACLELK" 的 OLE DB 访问接口 "MSDAORA" 不包含表 ""CMCC"."OS2_gis_CELL"" 。该表不存在，或者当前用户没有访问该表的权限 。 配置數據源：
工程INPLAN: (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.2.6)(PORT=1521)))(CONNECT_DATA=(SID=sa)(SERVER=DEDICATED))) ERP: (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL = TCP)(HOST = 192.168.3.25)(PORT = 1528)))(CONNECT_DATA =(SID= TJTEST))) (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL = TCP)(HOST = 192.168.3.25)(PORT = 1528)))(CONNECT_DATA =(SID= TJTEST))) 新建作業里的代碼： delete from XBLD_Information INSERT INTO XBLD_Information(job_name, num_layers, JB_PP1, JB_PC1, JB_PP2, JB_PC2, JB_PP3, JB_PC3, PP_PP1, PP_PC1, PP_PP2, PP_PC2, PP_PP3, PP_PC3, PP_PP4,PP_PC4,BM) select * from openquery(INPLAN, select mjs15.job_name, mjs15.num_layers,mjs1.MM1 JB_PP1,mjs1.MC1 JB_PC1,mjs2.MM2 JB_PP2,mjs2.MC2 JB_PC2,mjs3.MM3 JB_PP3,mjs3.MC3 JB_PC3,mjs11.MM1 PP_PP1,mjs11.MC1 PP_PC1,mjs12.MM2 PP_PP2,mjs12.MC2 PP_PC2,mjs13.MM3 PP_PP3,mjs13.MC3 PP_PC3,mjs14.MM4 PP_PP4,mjs14.MC4 PP_PC4,Substr(mjs15.job_name,5,2) BM from (select mjl.job_name, mjl.num_pcbs, mjl.num_arrays, mjl.num_panles_, mjl.num_layers, substr(mjl.op_size_y_string_,instr(mjl.op_size_y_string_,=)+1,length(mjl.op_size_y_string_)-instr(mjl.op_size_y_string_,=)+1) y_size, --祇へ糴 substr(mjl.op_size_x_string_,instr(mjl.op_size_x_string_,=)+1,length(mjl.op_size_x_string_)-instr(mjl.op_size_x_string_,=)+1) x_size --祇へ from tj.my_job_list mjl ) mjs15, (select * from (select mjs.job_name, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),1,material_name) MM1, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),1,material_count) MC1 from tj.my_job_stackup_material_count mjs where mjs.type_T=Core )where MM1 is not null ) mjs1, (select * from (select mjs.job_name, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),2,material_name) MM2, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),2,material_count)MC2 from tj.my_job_stackup_material_count mjs where mjs.type_T=Core ) where MM2 is not null ) mjs2, (select * from (select mjs.job_name, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),3,material_name) MM3, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),3,material_count)MC3 from tj.my_job_stackup_material_count mjs where mjs.type_T=Core ) where MM3 is not null ) mjs3, (select * from ( select mjs.job_name, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),1,material_name) MM1, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),1,material_count) MC1 from tj.my_job_stackup_material_count mjs where mjs.type_T=Prepreg )where MM1 is not null ) mjs11, (select * from ( select mjs.job_name, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),2,material_name) MM2, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),2,material_count)MC2 from tj.my_job_stackup_material_count mjs where mjs.type_T=Prepreg )where MM2 is not null ) mjs12, (select * from ( select mjs.job_name, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),3,material_name) MM3, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),3,material_count)MC3 from tj.my_job_stackup_material_count mjs where mjs.type_T=Prepreg ) where MM3 is not null ) mjs13, (select distinct * from ( select mjs.job_name, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),4,material_name) MM4, decode(DENSE_RANK() over( partition by job_name order by material_name,material_count),4,material_count)MC4 from tj.my_job_stackup_material_count mjs where mjs.type_T=Prepreg ) where MM4 is not null ) mjs14 where mjs15.job_name=mjs1.job_name(+) and mjs15.job_name=mjs2.job_name(+) and mjs15.job_name=mjs3.job_name(+) and mjs15.job_name=mjs11.job_name(+) and mjs15.job_name=mjs12.job_name(+) and mjs15.job_name=mjs13.job_name(+) and mjs15.job_name=mjs14.job_name(+) ) UPDATE XBLD_Information SET BM=b.Describe from XBLD_Information a, XBLD_BM b where a.bm=b.id |
