hi experts,
i have some problem with count data which separate by comma, below sample data :
01,011222823b6d,011222823f29,0028a5,002993,6212345678,
659111111111,6598204507,6281105008,6596197849,_,525016160836958,_,
ffffffff,000000000000000000000000,_,_,_,fd,fd,ff,00,1,0028a5-002993,_,... (10 Replies)
Hello everybody!
I am quit new here and hope you can help me.
Using an awk script I am trying to extract data from several files. The structure of the input files is as follows:
TimeStep parameter1 parameter2 parameter3 parameter4
e.g.
1 X Y Z L
1 D H Z I
1 H Y E W
2 D H G F
2 R... (2 Replies)
Hi Experts,
I have many CSV data files in the below format (Example) :-
Doc Number,Line Number,Condition Number
111,10,ABC
111,10,PQR
111,10,XYZ
222,20,DEF
222,20,EFG
222,20,HIJ
333,30,CCC
333,30,TCP
Now, for the above data i want to get the row count based on the Doc Number & Line... (9 Replies)
Dear all,
I have an AWK script which provides frequency of words. However I am interested in getting the frequency of chunked data. This means that I have already produced valid chunks of running text, with each chunk on a line. What I need is a script to count the frequencies of each string. A... (4 Replies)
Hi Guys,
I have a file where is different task_id and every task id has many received data, now we have to count no. of received data for any task_id. (received means received words, i.e. count no. of received word of any task_id)
Please help us Guys. (5 Replies)
Greetings Experts,
I am generating a validation query through awk and facing an issue, which I need to overcome by splitting the data based on the pattern matching count in the value of an array.
File1 --
Table11@column1@date@Table21@column1@varchar(10)@d;... (4 Replies)
Hi All
could u help me, i want to count data per minutes to be 5 minutes.
sample data like below :
23:40 187
23:41 200
23:42 178
23:43 171
23:44 161
23:45 145
23:46 172
23:47 163
23:48 174
23:49 174expectation :
23.40 - 23.44 897
23.45 - 23.49 828thanks (2 Replies)
Discussion started by: fajar_3t3
2 Replies
LEARN ABOUT MINIX
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)