pgintcl is a Tcl interface to the PostgreSQL database system, written entirely in Tcl. It is mostly compatible with other pgtcl implementations, especially pgtclng. It lacks asynchronous operations, and is somewhat slower, but it does not require any other libraries. (This project was on and its predecessor from Feb 2003 through Mar 2011.)


  • Allows Tcl scripts to communicate with PostgreSQL database servers
  • Written entirely in Tcl, so no need to get a compiled PostgreSQL library
  • Allows Tcl/Tk applications to run out-of-the-box on any platform with Tcl
  • Compatible subset of pgtclng commands, superset of original bundled Pgtcl
  • Tested with Tcl-8.6, 8.5, and 8.4; PostgreSQL-9.6.x and 10.x
  • Summary documentation included; for full documentation see pgtclng project

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Database, Libraries


BSD License

Follow Pure-Tcl Interface to PostgreSQL

Pure-Tcl Interface to PostgreSQL Web Site

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Programming Language


Database Environment

Other API, PostgreSQL (pgsql)