Question

I m trying to retrieve a BLOB field from Oracle and show it in a crystal report. While viewing the report, I ve that error:

Failed to open a rowset.
Details: ADO Error Code: 0x
Source: Microsoft OLE DB Provider for oracle
Description: Unspecified error

我使用视图作为报告数据源，其脚本

SELECT COMPANY_ID, COMPANY_LOGO FROM ID_COMPANY_SETUP;

我正在使用嵌入于VS.NET 2005中的CrystalReport。

有什么建议吗？

Answer 1

我找到了问题所在。那是“连接类型”。

I were using OLE DB(ADO) for connection to database, while I changed it to Oracle Server connection, blob field retrieved properly.