如何将即席SQLServer查询blob数据导出到二进制文件

Question

我只是希望能够将jpg数据从单个记录导出到文件，而无需每次都编写程序。

查询：

select Media from tbl_GEO_ElementImage where ElementImageID = 64902 

Answer 1

我最后写一个命令行实用程序允许简单的无人值守导出多个图像记录。

Usage: 
RunSQLOLEDB "[connection string]" "[query]" 

e.g. 
To extact all images from table Image into separate files 1.jpg, 2.jpg, etc. 
SQLImageOut "Provider=SQLOLEDB;Data Source=(local);..." "SELECT CONVERT(varchar(50), ImageID)+'.jpg', ImageData from Image" 
or   
SQLImageOut @ConnectionString.txt @Query.sql 

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GitHub Source

Answer 2

使用命令行BCP实用程序：

c:\temp\>bcp "select Media from tbl_GEO_ElementImage where ElementImageID = 64902" queryout "001.jpg" -T 

当promped，给出以下答案：

Enter the file storage type of field Media [image]: <Enter> 
    Enter prefix-length of field Media [4]: 0 
    Enter length of field Media [0]: <Enter> 
    Enter field terminator [none]: <Enter> 

Do you want to save this format information in a file? [Y/n] n