Stored Procedures

Stored procedures are function-like interfaces that extend the functionality of the driver beyond simple SELECT operations with HDFS.

Stored procedures accept a list of parameters, perform their intended function, and then return, if applicable, any relevant response data from HDFS, along with an indication of whether the procedure succeeded or failed.

CData JDBC Driver for HDFS Stored Procedures


Name	Description
AppendToFile	Create and Write to a File.
Concat	Concatenate a group of files to another file.
CreateSnapshot	Create a Snapshot of a folder.
CreateSymLink	Create a Symbolic Link.
DeleteFile	Delete a file or a directory.
DeleteSnapshot	Create a Snapshot of a folder.
DownloadFile	Open and read a file.
GetContentSummary	Get the content summary of a file/folder.
GetFileChecksum	Get the checksum of a file.
GetHomeDirectory	Get the home directory for the current user.
GetTrashRoot	Get the root directory of Trash for current user when the path specified is deleted.
ListStatus	Lists the contents of the supplied path.
MakeDirectory	Create a directory in the specified path.
RenameFile	Rename a file or a directory.
RenameSnapshot	Rename a Snapshot of a folder.
SetOwner	Set owner and group of a path.
SetPermission	Set permission of a path.
TruncateFile	Truncate a file to a new length.
UploadFile	Create and Write to a File.