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CMDebug / TCC-RT Help v. 28

@UNQREADB[[u,]filename,"key",handle[,length]]: Read a binary value from an existing key in an UnQlite database.

 

uOptional flag that the key is Unicode (UTF16)
filenameDatabase opened by @UNQOPEN
keyKey to read
handleA binary handle returned by @BALLOC
lengthNumber of bytes to read. If not specified, read the entire binary buffer.

 

Returns 0 if successful, or an error if not.

 

Example:

 

Open the database "test.db", read the key "btest", and save the binary value to a binary buffer :

 

set db=test.db

set key=btest

set result=%@unqopen[rwc,%db]

REM Size unknown - let unqreadb expand buffer

set bhandle=%@balloc[1]

set result=%@unqreadb[%db,%key,%bhandle]