For 3 and 4, you start with 3 lines and end with 1 line. Is this intended? I've assumed it's not, that you want 3 lines out for 3 lines in.
Hi Corona,
Thanks for your time.
For 3 and 4, usually the output file has thousands of records. But, I want to consider the maximum value of fourth column and print the filename as another column.
So, the three records will go out and only one record will remain, as in the example.
How can I run a program ('prog') through perl (in unix) and feed her required parameters?
system ("prog \n"); ?????????
now 'prog' ask for parameters and I want the perl script to give them automaticly without humen intervention? (2 Replies)
Hi,
I can't find how to achive such thing, please help.
I have try with uniq and comm but those command can't compare columns just whole lines,
I think awk will be the best but awk is magic for me as of now.
file a
a1~a2~a3~a4~a6~a7~a8
file b
b1~b2~b3~b4~b6~b7~b8
output 1:
compare... (2 Replies)
Hello,
I have a 1.6 GB file that I would like to modify by matching some ids in col1 with the ids in col 1 of file2.txt and save the results into a 3rd file.
For example:
File 1 has 1411 rows, I ignore how many columns it has (thousands)
File 2 has 311 rows, 1 column
Would like to... (7 Replies)
Hello everyone,
I am writing a script to process data from the ATP world tour.
I have a file which contains:
t=540 y=2011 r=1 p=N409
t=540 y=2011 r=2 p=N409
t=540 y=2011 r=3 p=N409
t=540 y=2011 r=4 p=N409
t=520 y=2011 r=1 p=N409
t=520 y=2011 r=2 p=N409
t=520 y=2011 r=3 p=N409
The... (4 Replies)
Hi,
I am facing issue while reading data from a file in UNIX. my requirement is to compare two files and for the text pattern matching in the 1st file, replace the contents in second file by the contents of first file from start to the end and write the contents to thrid file.
i am able to... (2 Replies)
Hi All,
I have around 900 Select Sql's which I would like to run in an awk script and print the output of those sql's in an txt file.
Can you anyone pls let me know how do I do it and execute the awk script? Thanks. (4 Replies)
Hi Folks,
Below is an extract from a VME Print file which gets handed over to a print house. The problem I have is not that tricky rther looking for a way to handle it in a simple and clean way.
Is to first select all lines with "0058" which have four spaces so "0058 " as the selcetion... (3 Replies)
hello,
i have a undelimited file which contains 229 byte records. i want to change column 23 - 26 with a new value and also change the sign of the data in colulmn 30 - 70. i've tried SED for the first change, but nothing happens:
sed 's/\(^.\{22\}\).\{4\}\(.*\)/\0603\2/' inputfile
heres an... (8 Replies)
Shell script logic
Hi
I have 2 input files like with file 1 content as (file1)
"BRGTEST-242" a.txt "BRGTEST-240" a.txt "BRGTEST-219" e.txt
File 2 contents as fle(2)
"BRGTEST-244" a.txt "BRGTEST-244" b.txt "BRGTEST-231" c.txt "BRGTEST-231" d.txt "BRGTEST-221" e.txt
I want to get... (22 Replies)
I am trying to consolidate multiple information files (<hostname>.Linux.nfslist) into one file so that I can import it into Excel. I can get the file contents with cat *Linux.nfslist >> nfslist.txt. I need each line prefaced with the hostname. I am unsure how to do this.
--- Post updated at... (5 Replies)
Discussion started by: Kentlee65
5 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)