[Dernie]

Hallo,

ich suche jemanden, der mir eine DLL für die Verbindung von MT4 zu einer ORACLE-DB entwickelt. Folgende Beschreibung:

I need a dll to work with Metarader4 (mql4) an ORACLE XE databases:

- no Java or something like that, it should be fast and safe
- no ORACLE-client installation on the Client-PC
- SELECT (single- AND multi-row), INSERT, UPDATE, DELETE, and any other ORACLE-SQL-Statement should work
- commit, rollback
- no need of DDL, only DML
- 32bit AND 64bit Operating Systems (Minimum Windows in all versions)
- we want to have all rights to the source-code (and the source-code of course :-) )
- before, we'll discuss about the way of implementing and the used techniques



Any ideas? :-)



Let me be a little bit more precisely:
---------------------------------------------

- We're writing EAs with MT4
- I want to connect EAs (written in MT4, build>600) with remotely installed ORACLE-databases (more precisely: the EA runs on the computers of our clients, the database runs on our PC)
- There must be no installation of ORACLE-client on client PCs (so: What technique will you use? OCI?)
- The only installation on the client PCs should be your dll
- No further installation on the database PC except the ORACLE database (of course with the ORACLE-client)
- We need the following functions:
=> No limitation (except the ORACLE limits) to the length of the statements!
o connecting (and reconnecting) to a database
o disconnecting a database
o rollback
o commit
o select (single-row)
o select (multi-row)
o DML (update, insert, delete)
o multi-session (1 session in 1 EA-instance, but a lot of Ea-instances at the same time on different client PCs)
o transactional
- Every function must return the ORACLE-error-code which has been returned from the ORACLE-DB when running the ORACLE statement
- The DLL must work with Windows 32Bit AND with Windows 64Bit
- used Windows Versions: (maybe Vista; not really important), 7, 8, 8.1, 10 (in every release, f.e. Home, Pro, ...)
- we need all rights to the dll, and the source-code
- inline documentation (every instruction/command) in English or German
- good outline documentation in English or German
o explanation of every function, every parameter, return value
=> I think, in most cases, 1 or 2 Sentences are enough :-)
o installation guide, using guide
=> how to use and how to handle with the dll, some little examples, etc.
o dll creation guide
=> in order to make changes on our own after you finished your job

Questions:
- Which tool (f.e. MS Visual Studio for C++, pro*c, etc.) will you use to create the dll?
- Which technique will you use?
- What are the limitations and/or the requirements?
- How long does it take?
- How will you connect to the database? Which connect-string or which connect-method?