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64x64base

Getting Started: Quickstart

Clone, build, build the sample databases, and run the DotTalk++ / x64base runtime.

Clone and build

The fullest working build on the public main branch is pro-md — the core engine plus LMDB indexing and the Turbo Vision UI. Use it if you want a working database runtime.

git clone https://github.com/deraldg/x64base.git
cd x64base
cmake --preset pro-md
cmake --build --preset pro-md-Release --target dottalkpp

Configure-preset and build-preset names differ: pro-md configures, pro-md-Release builds. For the smallest build instead, use windows-core (or core-vcpkg on Linux, WSL, or macOS) — see Installation.

Build the sample databases

A fresh clone has no sample data until you build it. One script does the whole job and is self-contained — it resets, extracts the canonical archive, and builds all three DBF lanes (MS-DOS, VFP, x64) plus the x64 LMDB indexes:

.\dottalkpp\scripts\mcc\build_mcc_demo_bases.ps1

It warns before overwriting and waits for you to type YES.

Run and query

.\datarun.ps1

datarun.ps1 stages the freshly built dottalkpp.exe and its runtime DLLs into dottalkpp\bin, then starts the shell. Set the lane and query:

DO X64                  && sets the x64 lane (dbf, indexes, lmdb)
USE STUDENTS
SET INDEX TO STUDENTS
SET ORDER TO TAG LNAME
SMARTLIST 10

Run DO X64 first: the default DBF path is data\dbf, not a lane, so a bare USE STUDENTS will not find the table. DO X64 points the DBF, index, and LMDB paths at the x64 lane (DO X32 and DO VFP select the other flavors). Ordered by LNAME, record one reads Anderson.

Use HELP followed by a command name for the current command contract. Mutation commands such as REPLACE, CALCWRITE, DELETE, COMMIT, and PACK should be exercised only against disposable data — never the sample foundation.

Reality check

  • main is the canonical public source.
  • A green CI run proves only the selected build/test profiles.
  • On x64, ordered reads are LMDB-backed. The shipped .cnx / .cdx containers let you open and read a table, but SET ORDER TO TAG on x64 needs the LMDB environments the databuild above generates (they are derived, not shipped).
  • COMMIT is a best-effort buffer apply operation, not an atomic transaction across DBF, memo, and index stores.

See Installation, Current Project Truth, and Downloads.

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