Hello everyone
I have a csv file organized just like in the following example:
col1,col2,col3,CODE_0, ... , colN
col1,col2,col3,CODE_0, ... , colN
col1,col2,col3,CODE_1, ... , colN
col1,col2,col3,CODE_1, ... , colN
col1,col2,col3,CODE_1, ... , colN
col1,col2,col3,CODE_2, ... , colN... (7 Replies)
Hi all
I have following kind of input file
ESR1 PA156 leflunomide PA450192 leflunomide
CHST3 PA26503 docetaxel Pa4586; thalidomide Pa34958; decetaxel docetaxel docetaxel
I want to remove duplicates and I want to separate anything before and after PAxxxx entry into columns or... (1 Reply)
I have one command which provide following output related to file system and disk space utilization
Filesystem kbytes used avail %used Mounted on
/dev/lvol3 131072 73407 54088 58% /
/abc/lvol1 59797 30314 2350300 ... (8 Replies)
for making a summary
I have a CSV file which is transformed to .DAT. I have an AWK file which is supposing to do the mapping of the DAT file. The code from the AWK file is the one below.
The content of the DAT file looks like this (tab separated):
ODT AGE CDT CO SEX TIME VALUE COMMENT
... (1 Reply)
I have a shell script that is currently transferring a csv file from a server into a Teradata database table. One of the 30 or so columns is called "destination_url". In that URL there are parameters, and it is possible for those parameters to be repeated because of referring companies copying... (3 Replies)
I have data such as below where the value in second field is the same as that in the row after.
123456,22222,John,0,xyz
234567,22222,John1,1,cde
43212,3333,Jean,3,pip
84324,3333,Abel,2,cat
I'd like to rearrange the output like below to put such records beside each other and separated with... (5 Replies)
I am running an ISQL command on Sybase DB and getting output of a query in an CSV file.
The issue is that all the data comes in to the same column, i want them to be separated in different columns.
SQL_COMMAND=command.sql
file=file.txt
formatFile=formatFile.txt
report=report.csv
echo... (1 Reply)
Discussion started by: Sharma331
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)