Hello All,
I am brand new to the UNIX world and so far and very intrigued and enjoy scripting. This is just a new language for me. I would really like assistance with the below request. Any help would be greatly appreciated!
I want to create a flat file in Vi that has a header field and... (0 Replies)
Hi All
I am reading a huge file of size 2GB atleast. I am reading each line and cutting certain columns and writing it to another file.
Here is the logic.
int main()
{
string u_line;
string Char_List;
string u_file;
int line_pos;
string temp_form_u_file;
... (10 Replies)
Hi!
Thank you for the help yesterday
This is the finished product
There is one more thing I would like to do to it but I’m not to certain
On how to proceed I would like to log all output to a log in order to
Be able to roll back
This script is meant to be used in repairing a... (4 Replies)
can anyone help to share the knowledge on linux os improvement?
1) os account
- use window AD authentication, such as ldap, but how to set /etc/passwd, where to put user home?
2) user account activity
- how to log os user activity
share the idea and what tools can do that...thx (5 Replies)
Heyas
I've been working on my project TUI (Text User Interface) for quite some time now, its a hobby project, so nothing i sit in front of 8hrs/day.
Since the only 'real' programming language i knw is Visual Basic, based upon early steps with MS-Batch files. When i 'joined' linux 3 years ago,... (7 Replies)
Hello Coders
Some time ago i was asking about python and bash performances, and i was told i could post the regarding code, and someone would kindly help to make it faster (if possible).
If you have noted, i'm on the way to finalize, finish, stable TUI - Text(ual) User Interface.
It is a... (6 Replies)
Below script is used to search numeric data from around 400 files in a folder. I have 300 such folders. Need help in performance improvement in the script.
Below Script searches 20 such folders ( 300 files in each folder) simultaneously. This increases cpu utilization upto 90% What changes... (3 Replies)
Hi,
another little question...
"sn" is an array whose elements can vary from about 55,000 to about 150,000 elements. Each element consists of an integer between 0-255, eg: ${sn} contain the value: 103 . For a decrypt-procedure I need scroll all the elements 4 or 5 times. Here is an example of... (15 Replies)
Hi guys and gals...
MacBook Pro.
OSX 10.13.2, default bash terminal.
I have a flat file 1920 bytes in size of whitespaces only. I need to put every single whitespace character into a bash array cell.
Below are two methods that work, but both are seriously ugly.
The first one requires that I... (7 Replies)
Hello,
For several of our scripts we are using awk to search patterns in files with data from other files. This works almost perfectly except that it takes ages to run on larger files. I am wondering if there is a way to speed up this process or have something else that is quicker with the... (15 Replies)
Discussion started by: SDohmen
15 Replies
LEARN ABOUT LINUX
start_transaction
START TRANSACTION(7) SQL Commands START TRANSACTION(7)NAME
START TRANSACTION - start a transaction block
SYNOPSIS
START TRANSACTION [ transaction_mode [, ...] ]
where transaction_mode is one of:
ISOLATION LEVEL { SERIALIZABLE | REPEATABLE READ | READ COMMITTED | READ UNCOMMITTED }
READ WRITE | READ ONLY
DESCRIPTION
This command begins a new transaction block. If the isolation level or read/write mode is specified, the new transaction has those charac-
teristics, as if SET TRANSACTION [set_transaction(7)] was executed. This is the same as the BEGIN [begin(7)] command.
PARAMETERS
Refer to SET TRANSACTION [set_transaction(7)] for information on the meaning of the parameters to this statement.
COMPATIBILITY
In the standard, it is not necessary to issue START TRANSACTION to start a transaction block: any SQL command implicitly begins a block.
PostgreSQL's behavior can be seen as implicitly issuing a COMMIT after each command that does not follow START TRANSACTION (or BEGIN), and
it is therefore often called ``autocommit''. Other relational database systems might offer an autocommit feature as a convenience.
The SQL standard requires commas between successive transaction_modes, but for historical reasons PostgreSQL allows the commas to be omit-
ted.
See also the compatibility section of SET TRANSACTION [set_transaction(7)].
SEE ALSO
BEGIN [begin(7)], COMMIT [commit(7)], ROLLBACK [rollback(7)], SAVEPOINT [savepoint(7)], SET TRANSACTION [set_transaction(7)]
SQL - Language Statements 2010-05-14 START TRANSACTION(7)