Firebird 3.0 是否有一个 UDF 库可以帮助我恢复旧数据库？

Question

我正在尝试从我收到的

.gbk

文件恢复 Firebird 数据库。有人告诉我它来自 Firebird 数据库版本

3.0.11

。

当我在文件上运行恢复工具

gbak -c ...

时，它会愉快地咀嚼它，直到最后产生这些警告：

gbak: WARNING:function F_PADLEFT is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_LRTRIM is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_MID is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_SUBSTR is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_YEAR is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_MONTH is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_TRUNCATE is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function ABS is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_DAYOFMONTH is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function PHS_STR is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function PHS_MMYY is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function PHS_ROUND is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function SUBSTR is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_MODULO is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_LTRIM is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_STRINGLENGTH is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_LEFT is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak: WARNING:    function F_DAYOFYEAR is not defined
gbak: WARNING:    module name or entrypoint could not be found
gbak:finishing, closing, and going home
gbak:adjusting the ONLINE and FORCED WRITES flags

然后退出。

当我尝试连接到数据库时，它失败了：

Use CONNECT or CREATE DATABASE to specify a database
SQL> CONNECT "/path/to/the/database.fdb"
CON> USER xxxxx PASSWORD xxxxx
CON> ;
Statement failed, SQLSTATE = 2F000
Error while parsing procedure LOG_CONNECT's BLR
-invalid request BLR at offset 4185
-function F_YEAR is not defined
-module name or entrypoint could not be found
SQL> 

我确实无法在任何地方找到错误代码

2F000

。

我有两个问题：

1. 我是否正确假设构建数据库时出现警告是由于缺少 UDF？
2. Firebird 有免费的 UDF 库吗

   3.0

   ？

我找到了FreeAdhocUDF。那里可用的 UDF 库与

2.0

之前的版本兼容，我天真地尝试让它们与

3.0

一起使用，但没有成功。

有人有什么想法吗？非常感谢！ :)

Answer 1

1. 是的，这是由于缺少 UDF。
2. UDF 接口在 2.0 和 3.0 之间没有变化，因此您只需仔细阅读收到的错误消息即可。这要么是因为您忘记阅读发行说明并在

   firebird.conf

   中启用 UDF 访问，要么是您获得了错误位数的库。缺少依赖项也是一种选择。

同时，您可以在禁用数据库触发器的情况下连接到数据库。这将允许您解除

LOG_CONNECT

触发器以及其他使用 UDF 的地方。向数据库的开发者或所有者询问它们的列表。