How to view a bTree?

[1e1]

What happens if it's a bTree Freelist?

How can we "visualize" the data?

zipvfs-converter/src/main/java/net/ratcash/sqlite/zipvfs/converter/NdsDecompressor.java

Line 90 in 80f3daf

// this may be a bTree Freelist slot or an encrypted ZipVFS slot

[1e1]

I saw you wrote that for a VAG car.
While I'm reading PRODUCT.NDS from a VAG distrib, I notice 2 interesting things:

CREATE TABLE cipherKeyInfoTable 
(keyInfoId INTEGER NOT NULL
, offset INTEGER NOT NULL, length INTEGER NOT NULL, rnd INTEGER NOT NULL, cipherKeyData BLOB NOT NULL
, primary key (keyInfoId)
);

INSERT INTO cipherKeyInfoTable VALUES(2,0,16,0,X'000102');

CREATE TABLE urBuildingBlockVersionTable 
( updateRegionId INTEGER NOT NULL, buildingBlockId INTEGER NOT NULL
, versionId INTEGER NOT NULL, isDirty INTEGER NOT NULL, isPartiallyFilled INTEGER NOT NULL, cipherKeyInfoId INTEGER , buildingBlockMetadata BLOB , uri TEXT NOT NULL, dataModelVersionId INTEGER NOT NULL
, primary key (updateRegionId, buildingBlockId)
);

INSERT INTO urBuildingBlockVersionTable VALUES(0,0,1,0,0,2,NULL,'EEC_WLD/OVERALL.NDS',1);
INSERT INTO urBuildingBlockVersionTable VALUES(0,1,1,0,0,2,X'000214160297ab81336100','EEC_WLD/BMD.NDS',1);

Perhaps it can help for opening locked files?

[devtronic]

I'm not sure if it helps but in this repo are some references to the *.NDS files https://github.com/wangxl1029/mb_server_ruteng_demo_v1/blob/master/CommonLib/DataProvider/src/DPDBConnectionPool.cpp

[devtronic]

BTree Code https://github.com/tjmiaowang/FTS/blob/766312d56ca1d6c79658069c307ccee366dc140b/Sqlite/src/sqlite3/devkit/nds_sqlite3_analyzer.c