jfs | Java NIO filesystem implementation for google drive/docs | REST library

It might be happening because of snakeYml version conflict between JDK and Spring in the build path

It isn't mentioned in a straight-forward way but the COPY INTO … TABLE statement documentation does specify that it will use the default only for skipped column names (and not in other scenarios):

( col_name [ , col_name ... ] )

[ … ]

Any columns excluded from this column list are populated by their default value

Additionally, the NULL-use behaviour is mentioned for another scenario where data may be missing, making no note of the use of defaults:

ERROR_ON_COLUMN_COUNT_MISMATCH = TRUE | FALSE

[ … ]

If the input file contains records with fewer fields than columns in the table, the non-matching columns in the table are loaded with NULL values.

I can see where this would be confusing... Especially coming from a Non-POSIX environment.

I'll start with the answer, and then provide more information.

For a normal text file, you want RSD, and to make sure that the \n is column 81. A record length of 80 is just the data portion, not including the delimiter. QSAM (fixed length) would appear to work, but would return the \n as part of the data!

Your FS=37 means that the attributes of the file don't match what the program is asking for (more esoteric than, say, FS=39 - invalid fixed attributes). In this case, it means the file you wanted to open was not, really, a STL file.

By filesystem we mean how the data is physically stored on the platter, SSD, RAM, ... More accurately, how we format the record before handing it off to the next lower level of I/O.

There are two basic types of filesystems:

• Native (on top of JFS2, JFS, NFS, CIFS, ...) RSD, QSAM, LSQ, STL, SdU. These filesystems can be operated on by standard OS utilities

• Non-Native (on top of another product) DB2 (DB2) and SFS (TxSeries/CICS). These filesystems are invisible to standard OS utilities

Then, there are groupings by type of COBOL organization (preferred):

• Sequential: All filesystems support Sequential...z/OS: QSAM, VSAM
• Relative: STL, SdU, SFS, DB2...........z/OS: VSAM
• Indexed: STL, SdU, SFS, DB2...........z/OS: VSAM

Of the Native filesystems, QSAM(variable), STL and SDU contain metadata, making them not really viewable in vi,cat,... Ok... you can open them in vi, but it will look like utter garbage.

QSAM is a faithful implementation of z/OS:

• Fixed length records: Raw data, no BDW/RDW, no line delimiters (\n).
• Variable length records: RDW + raw data (no \n)... However there is no BDW.

RSD is a normal stream (text) file; each record is terminated with \n, which is not counted in the record length (the program will never see them).

LSQ (Line Sequential) is the same as on z/OS - messy semantics.

VSAM is an alias for a filesystem that provides all the features of z/OS VSAM. Unfortunately, for historical reasons, it points to SdU...

STL is, by far and away, better at everything than is SdU.

SdU was the first filesystem to cover QSAM and VSAM, but is old and decrepit, compared to STL.

Finally found a solution. Restarting the computer did not help. Shutting down the computer - did help. Maybe it has a connection to the power of the Bluetooth device.

Hope it helps.

Returning is what makes the result incomplete. Instead of returning, use a separate list to track your paths. I'm using list cur_list here, and returning it at the very end of the loop:

Chances are that sed is up to the task:

Issue solved. Forgot to specify the volume offset (mount -o offset=byteoffset) in the image while mounting, which explains why the filesystem was not being found.

Your check that the inputs are '.txt' files is good; it relieves you of needing to worry about passing 'rb' or 'wb' to open().

You say you don't want to allocate N bytes for an N-byte file, for fear that occasionally N may be quite large. Better to limit the memory allocation to size of longest text line rather than size of biggest file. Let's break out a helper function. Delete / replace these lines:

It was just a writing problem. I needed to remove the first : in the string: