Hi Mike, 'hdbcli' is the official python driver for SAP HANA and you are right that it is not open-source. I also tried with pyhdb:
q2 = session.query(Supplier.s_acctbal, Supplier.s_name, Nation.n_name, Part.p_partkey, Part.p_mfgr, Supplier.s_address, Supplier.s_phone, Supplier.s_comment).filter(Part.p_partkey == Partsupp.ps_partkey, Supplier.s_suppkey== Partsupp.ps_suppkey, Part.p_size == 15, Part.p_type.like('%BRASS'), Supplier.s_nationkey == Nation.n_nationkey, Nation.n_regionkey == Region.r_regionkey, Region.r_name == 'Europe', Partsupp.ps_supplycost == session.query(func.min(Partsupp.ps_supplycost) ).filter(Part.p_partkey == Partsupp.ps_partkey, Supplier.s_suppkey == Partsupp.ps_suppkey, Supplier.s_nationkey == Nation.n_nationkey, Nation.n_regionkey == Region.r_regionkey, Region.r_name == 'EUROPE').correlate(Partsupp, Supplier, Nation, Region)).order_by(Supplier.s_acctbal.desc(), Nation.n_name, Supplier.s_name, Part.p_partkey).limit(100) I still get an error similar to my 2nd update: sqlalchemy.exc.DatabaseError: (pyhdb.exceptions.DatabaseError) invalid column name: The column 'SUPPLIER.S_ACCTBAL' is invalid in the ORDER BY clause because the GROUP BY clause or an aggregation function does not contain it: line 5 col 211 (at pos 887) [SQL: u'SELECT supplier.s_acctbal AS supplier_s_acctbal, supplier.s_name AS supplier_s_name, nation.n_name AS nation_n_name, part.p_partkey AS part_p_partkey, part.p_mfgr AS part_p_mfgr, supplier.s_address AS supplier_s_address, supplier.s_phone AS supplier_s_phone, supplier.s_comment AS supplier_s_comment \nFROM supplier, nation, part, partsupp, region \nWHERE part.p_partkey = partsupp.ps_partkey AND supplier.s_suppkey = partsupp.ps_suppkey AND part.p_size = ? AND part.p_type LIKE ? AND supplier.s_nationkey = nation.n_nationkey AND nation.n_regionkey = region.r_regionkey AND region.r_name = ? AND partsupp.ps_supplycost = (SELECT min(partsupp.ps_supplycost) AS min_1 \nFROM part \nWHERE part.p_partkey = partsupp.ps_partkey AND supplier.s_suppkey = partsupp.ps_suppkey AND supplier.s_nationkey = nation.n_nationkey AND nation.n_regionkey = region.r_regionkey AND region.r_name = ?) ORDER BY supplier.s_acctbal DESC, nation.n_name, supplier.s_name, part.p_partkey\n LIMIT ?'] [parameters: (15, '%BRASS', 'Europe', 'EUROPE', 100)] (Background on this error at: http://sqlalche.me/e/4xp6) Do you may be know what the reason could be? Can there be some error in my query building using SQLAlchemy? Thanks and Best Regards, Sugandha -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.