sqlalchemy-altibase7

• Altibase support for SQLAlchemy implemented as an external dialect.
• It is tested on Altibase v7.
• This source code is maintained on https://github.com/hesslee/sqlalchemy-altibase7
• This source code is based on https://pypi.org/project/sqlalchemy-altibase
• This package is uploaded on https://pypi.org/project/sqlalchemy-altibase7

Changes from sqlalchemy-altibase

• It is mainly supplemented for langchain connectivity.
• sqlalchemy version upper limit requirement is removed.

Prereqisite

• Download and install Altibase server and client from http://support.altibase.com/en/product
• Unixodbc setting for Linux
• ODBC DSN setting for Windows

Unixodbc setting example for Linux

• install : sudo apt-get install unixodbc-dev
• example configuration :

$ cat /etc/odbc.ini 
[PYODBC]
Driver          = /home/hess/work/altidev4/altibase_home/lib/libaltibase_odbc-64bit-ul64.so
Database        = mydb
ServerType      = Altibase
Server          = 127.0.0.1
Port            = 21121
UserName        = SYS
Password        = MANAGER
FetchBuffersize = 64
ReadOnly        = no

$ cat /etc/odbcinst.ini 
[ODBC]
Trace=Yes
TraceFile=/tmp/odbc_trace.log

ODBC DSN setting example for Windows

• Altibase Windows ODBC driver is registered during Altibase Windows client installation procedure.
• Add a ODBC DSN for Altibase.
• example configuration :

[Altibase Connection Config]
Windows DSN Name: PYODBC
host(name or IP): 192.168.1.210
Port(default 20300): 21121
User: SYS
Password: MANAGER
Database: mydb
NLS_USE: UTF-8

sqlalchemy-altibase7 using langchain

• install : pip install sqlalchemy-altibase7
• reference : https://python.langchain.com/v0.1/docs/use_cases/sql/
• test preparation : Populate sample data into Altibase database using "test/Chinook_Altibase.sql" file in this repository.
• test programs
  • langchain_chain.py : using chain
    • reference : https://python.langchain.com/v0.1/docs/use_cases/sql/quickstart/#chain
  • langchain_agent.py : using sql agent
    • reference : https://python.langchain.com/v0.1/docs/use_cases/sql/agents/#agent