Oracle 将 blob 转换为字符串
[英]Oracle convert blob to string
问题描述
I would like to convert a blob of an oracle db to an readable string.
我想将 oracle db 的 blob 转换为可读字符串。
I have tried some functions, but none of them worked for me.我尝试了一些功能，但没有一个对我有用。
In the end I tried to convert the string via sql statement like:最后，我尝试通过 sql 语句转换字符串，例如：
SELECT CONVERT(CAST(blob as BINARY) USING utf8) as blob FROM tablewithblob
Can anyone tell me, what I am doing wrong?谁能告诉我，我做错了什么？ The error of the sqldeveloper is "missing right paranthesis. Thanks in advance! sqldeveloper 的错误是“缺少右括号。提前致谢！
1 个解决方案
解决方案1
0 2019-09-18 22:31:28
The CONVERT(value USING charset) function is a mysql function, not Oracle CONVERT(value USING charset) function 是 mysql function，而不是 Z30234F141
https://www.w3schools.com/sql/func_mysql_convert.asp https://www.w3schools.com/sql/func_mysql_convert.asp
Take a look at this instead看看这个
https://docs.oracle.com/cd/B28359_01/server.111/b28286/functions027.htmhttps://docs.oracle.com/cd/B28359_01/server.111/b28286/functions027.htm
But it looks like DBMS_LOB is a better way to do what you're doing in Oracle.但看起来 DBMS_LOB 是一种更好的方式来执行您在 Oracle 中所做的事情。 Go check out How do I get textual contents from BLOB in Oracle SQL Go 查看如何从 Oracle SQL 中的 BLOB 获取文本内容
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