Hi All,
I am facing a strange situation and want to find why it is occuring . When i convert the whole line into Hexadecimal character i can find the junk value after new line (\n) . If i look in binary mode it is not visible.
PLease let me know how possible the junk character is added... (1 Reply)
Hi All,
I'm trying to write a ksh script to parse a file. When the "\" character is encountered, it should be removed and the next line should be concatenated with the current line. For example...
this is a test
line #1\
should be concatenated with line #2\
and line number 3
when this... (3 Replies)
Hi,
My input has much more lines, but few of them are below
pin(IDF) {
direction : input;
drc_pinsigtype : signal;
pin(SELDIV6) {
direction : input;
drc_pinsigtype : ... (3 Replies)
Hello everyone
Sorry I have to add another sed question. I am searching a log file and need only the first 2 occurances of text which comes after (note the space) "string " and before a ",". I have tried
sed -n 's/.*string \(*\),.*/\1/p' filewith some, but limited success. This gives out all... (10 Replies)
Hi All
It's me again with another huge txt files. :confused:
What I have:
- I have 33 huge txt files in a folder.
- I have thousands of line in this txt file which contain many the letter "x" in them.
- Some of them have more than one "x" character in the line.
What I want to achieve:... (8 Replies)
I'd like to put paragraph breaks \n\n randomly between 5 - 10 occurrences of the dot character (.), for an entire text file. How to do that?
In other words, anywhere between every 5 -10 sentences, a new paragraph will generate. There are no other uses of the (.) except for sentence breaks in... (11 Replies)
Discussion started by: p1ne
11 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)