FetchBlob

Class: TMMScript

function FetchBlob(
           const ATableName, 
           AColumnName: string;
           APKParams: TJSONArray;
           ADestField: TField = nil;
           const ADestFile: string = ''): Boolean;

Downloads a single BLOB or CLOB column value.

Parameter	Meaning
`ATableName`	Source table on the remote server
`AColumnName`	Source column; use `Columns[I].SourceName`
`APKParams`	`TJSONArray` of `{col, val}` pairs; obtain via `BuildPKParams`
`ADestFile`	(Evaluated first) Save raw bytes to this path
`ADestField`	(Evaluated second) Write to this EDB field via `Edit/Post`

When both ADestFile and ADestField are omitted, the value is saved to an auto-named file in DefaultTransferFolder (which must be set).
Returns True on success, including NULL values.

FetchBlob

See Also