Hi,
I have a data file looks like the following
ID STARTDATE ENDDATE
101 20090520 20090521
102 20090521 20090522
103 20090522 20090523
104 20090523 20090524
105 20090524 20090525
106 20090525 20090526
107 ... (3 Replies)
Hello,
What's the best way to split a large into multiple files based on the last digit in the first column.
input file:
f
2738483300000x0y03772748378831x1y13478378358383x2y23743878383802x3y33787828282820x4y43748838383881x5y5
Desired Output:
f0
3738483300000x0y03787828282820x4y4
f1... (9 Replies)
I am just a newbie to perl scripting. I need help with listing of hexadecimal numbers in a column as follows.
INPUT FIle:
08AF ship steel
08B0 ship steel
08B1 ship steel
08B2 flight docs
08B3 flight docs
08B4 flight docs
08B5 flight docs
08B6 flight decl ... (3 Replies)
I have a csv file with occasional multiple entries in the second column.
111111,104,07-24-2011,3.15,N,
222222,020 140,07-24-2011,10.00,N,I want the result
111111,104,07-24-2011,3.15,N,
222222,020,07-24-2011,10.00,N,
222222,140,07-24-2011,10.00,N,
I know I can get the output of the second... (5 Replies)
I have a text file where I want to append a column of numbers in ascending orders.
Input:
57 abc
25 def
32 ghi
54 jkl
Output:57 abc
57 abc 1
25 def 2
32 ghi 3
54 jkl 4
How do I go about doing that? Thanks! (11 Replies)
Hi All
I have one query,say i have a requirement like the below code should be
move to diffent files whose maximum lines can be of 10 lines.Say in the below example,it consist of 14 lines.
This should be moved logically using the data in the fisrt coloumn to file1 and file 2.The data of first... (2 Replies)
Hi,
I would like to add a new column containing the row numbers to a text file. How do I go about doing that? Thanks!
Example input:
A X
B Y
C D
Output:
A X 1
B Y 2
C D 3 (5 Replies)
Hi please help me in resolving the scenario.
Source File:
col1 col3
----- -----
file1 data1
file2 data2
file1 data3
file3 data4
file5 data5
..
...
.... and so on.
Result should be:4 files created.
first file, file1.txt (no need to worry about .txt extension) will... (1 Reply)
Hello,
I am trying to make a awk code that will take 2 files, a txt file like this :
1 1 88 c(1:38, 42, 102)
2 2 128 c(39:41, 43:101, 103:105, 153, 155:189, 292, 344:369)
3 3 84 c(190:249, 603, 606:607, 609:629)
4 4 12 ... (8 Replies)
i have a file having 5 columns with more than million records. And i want to search using UNIX command to find if there are any spaces in 5th column. any please help. (1 Reply)
Discussion started by: sivakumar.p
1 Replies
LEARN ABOUT OPENDARWIN
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)