I've got two large csv text table files with different number of columns each.
I have to compare them based on first two columns and create resulting file
that would in case of matched first two columns include all values from first one and all values (except first two colums) from second one. I... (5 Replies)
All,
So, I have an ldif file that contains about 6500 users worth of data. Some users have a block of text I'd like to remove, while some don't.
Example (block of text in question is the block starting with "authAuthority: ;Kerberosv5"):
User with text block:
# username, users,... (7 Replies)
Dear All-
My requirement is as below-
Header file
$ cat HEADER.txt
RequestId:
RequestDate:
Data file
$ cat DATAVAL.txt
1001|2009-03-01
I need to send the combined data below as email body via mailx command
------------------
RequestId:1001
RequestDate:2009-03-01
I would like... (4 Replies)
Hi, I need a script that parses and greps data out of a textfile.
I have a text file that has this structure:
File1
host1.localdomain
text random text
Found errors
this text is random (41123) --- random random
at.5165 ---- random random
at.5165 ---- random random
at.5165 ----... (2 Replies)
Hi All,
I have file f1 contains :
f1;
Server Name1
te-1212hdsfhf-12kll-56565
Server Name2
jd-1212hdsfhf-12kll-5677
Server Name3
ty-1212hdsfhf-12kll-444
....
I have to produce f2 with the output:
f2:
Server1 te-1212hdsfhf-12kll-56565
Server2 jd-1212hdsfhf-12kll-5677
Server3... (11 Replies)
I have a file I need to monitor with a perl script with the following format. I need to send off a 0 if it is above 95 in the 5th colum and a 1 if it is below. Any help on a simple perl script would be great.
75424958 999975 983170 /dev/rmetrochunk00 98.32
760c2dd8 ... (3 Replies)
:confused:Hello -- i just joined the forums. I am a complete noob -- only about 1 week into learning how to program anything... and starting with linux.
I am working in Linux terminal.
I have a folder with a bunch of txt files. Each file has several lines of html code. I want to combine... (2 Replies)
Hi
I have a file with different filesystems with there sizes. I need to split them in chucks of 1TB.
The file looks like
vf_MTLHQNASF07_Wkgp2 187428400 10601AW1
vf_MTLHQNASF07_Wkgp2 479504596 10604AW1
vf_MTLHQNASF07_Wkgp2 19940 10605AID
vf_MTLHQNASF07_Wkgp2 1242622044... (4 Replies)
We are migrating Pro*C code from SOLARIS to LINUX-Redhat.
While migrating we face memory de-allocation issue intermittently when accessing large volume of data.
Below is the part of the code(since code is big I am putting the part of the code where the issue comes):
... (8 Replies)
All,
I have an application that is not working properly and the company is 'in the process' of fixing it. In the meantime, I want to write a bash script work-around. However, what I thought was going to be simple is seemingly not.
Need:
- Move files from one directory to another in... (3 Replies)
Discussion started by: hburnswell
3 Replies
LEARN ABOUT FREEBSD
begin
BEGIN(7) SQL Commands BEGIN(7)NAME
BEGIN - start a transaction block
SYNOPSIS
BEGIN [ WORK | TRANSACTION ] [ transaction_mode [, ...] ]
where transaction_mode is one of:
ISOLATION LEVEL { SERIALIZABLE | REPEATABLE READ | READ COMMITTED | READ UNCOMMITTED }
READ WRITE | READ ONLY
DESCRIPTION
BEGIN initiates a transaction block, that is, all statements after a BEGIN command will be executed in a single transaction until an
explicit COMMIT [commit(7)] or ROLLBACK [rollback(7)] is given. By default (without BEGIN), PostgreSQL executes transactions in ``autocom-
mit'' mode, that is, each statement is executed in its own transaction and a commit is implicitly performed at the end of the statement (if
execution was successful, otherwise a rollback is done).
Statements are executed more quickly in a transaction block, because transaction start/commit requires significant CPU and disk activity.
Execution of multiple statements inside a transaction is also useful to ensure consistency when making several related changes: other ses-
sions will be unable to see the intermediate states wherein not all the related updates have been done.
If the isolation level or read/write mode is specified, the new transaction has those characteristics, as if SET TRANSACTION [set_transac-
tion(7)] was executed.
PARAMETERS
WORK
TRANSACTION
Optional key words. They have no effect.
Refer to SET TRANSACTION [set_transaction(7)] for information on the meaning of the other parameters to this statement.
NOTES
START TRANSACTION [start_transaction(7)] has the same functionality as BEGIN.
Use COMMIT [commit(7)] or ROLLBACK [rollback(7)] to terminate a transaction block.
Issuing BEGIN when already inside a transaction block will provoke a warning message. The state of the transaction is not affected. To
nest transactions within a transaction block, use savepoints (see SAVEPOINT [savepoint(7)]).
For reasons of backwards compatibility, the commas between successive transaction_modes can be omitted.
EXAMPLES
To begin a transaction block:
BEGIN;
COMPATIBILITY
BEGIN is a PostgreSQL language extension. It is equivalent to the SQL-standard command START TRANSACTION [start_transaction(7)], whose ref-
erence page contains additional compatibility information.
Incidentally, the BEGIN key word is used for a different purpose in embedded SQL. You are advised to be careful about the transaction
semantics when porting database applications.
SEE ALSO
COMMIT [commit(7)], ROLLBACK [rollback(7)], START TRANSACTION [start_transaction(7)], SAVEPOINT [savepoint(7)]
SQL - Language Statements 2010-05-14 BEGIN(7)