Hi,
I have a shell script that returns 10 records for the column Name and age from a select query. Where when i store those data in retrieve_list.txt file i need to store the data in a particular format like:-
$Jason$30
$Bill$23
$Roshan$25
Here is my script:
1)... (15 Replies)
Hi Friends,
Can u please help mw with the following query .
I need to run a database sql statement to select particular fields from a table.I need to store the retrieved filed values into variables so that i can print it in a specific format. But the particular select query retrieves more... (12 Replies)
Hi
I need to execute a select statement in a solaris environment with oracle database. The select statement returns number of rows of data.
I need the data to be inserted into a CSV file with proper format. For that we normally use "You have to select all your columns as one big string,... (2 Replies)
Hi!
My data file contains a two columns list. It looks like:
1 3.789
2 6.789
3 7.890
4 8.900
5 6.789
6 1.987
7 10.987
8 2.987
9 0.987
I would like to create a new list using the awk command, just selecting data from the second column but also printing the first column.
Let say I select... (3 Replies)
Hey guys,
Is it possible to have a worker thread send data out a TCP connection while another thread is waiting using using select() on that same connection?
If not, then what is the correct way to maintain a connection, react to incoming data, and send data over a TCP connection?
Thanks... (16 Replies)
I would like to recover the data from 3 text tags.
These three markers are located between the tags specific location <tag1> and </tag1> knowing that they are in many places.
In File.txt:
<tag2>txt2</tag2>
<tag3>txt3</tag3>
<tag4>txt4</tag4>
....
<tag1>
<tag2>txt2</tag2>... (3 Replies)
Hello all,
Once again I need to call upon the masters for help. I have a file called endpoint_data. IN that file I have groups of endpoints. However all I need from the file is this....
ENDPOINT NAME = SIPWOODSBC
SIG PRI FQDN/IP ADDRESS/DOMAIN NAME = 10.xxx.xxx.xxx
SIG SEC... (4 Replies)
Hi all,
I am new to AWK and I am trying to solve a problem that is probably easy for an expert. Suppose I have the following data file input.txt:
20 35 43
20 23 54
20 62 21
20.5 43 12
20.5 33 11
20.5 89 87
21 33 20
21 22 21
21 56 87
I want to select from all lines having the... (4 Replies)
Hi All,
I need to remove all files except the most update data based on date on filename
Input
data_AIDS_20150312.txt
data_AIDS_20150311.txt
data_AIDS_20150411.txt
data_AIDS_20140312.txt
the most updated data is data_AIDS_20150411.txt, so I'll remove other files. My expected output... (3 Replies)
I wish to use AWK to do something akin: Select all 2D data with 1<$1<2 and -7.5<$2<-6.5
But it's not working
awk 'END {print ($1<=2&&$1>=1&&$2<=-6.5&&$2>=-7.5)}' bla
Data:
-1.06897 -8.04482 -61.469
-1.13613 -8.04482 -61.2271
-1.00182 -8.04482 -61.2081
-1.06897 -8.13518 -60.8544... (2 Replies)
Discussion started by: chrisjorg
2 Replies
LEARN ABOUT REDHAT
begin
BEGIN(7) SQL Commands BEGIN(7)NAME
BEGIN - start a transaction block
SYNOPSIS
BEGIN [ WORK | TRANSACTION ]
INPUTS
WORK
TRANSACTION
Optional keywords. They have no effect.
OUTPUTS
BEGIN This signifies that a new transaction has been started.
WARNING: BEGIN: already a transaction in progress
This indicates that a transaction was already in progress. The current transaction is not affected.
DESCRIPTION
By default, PostgreSQL executes transactions in unchained mode (also known as ``autocommit'' in other database systems). In other words,
each user 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). BEGIN initiates a user transaction in chained mode, i.e., all user statements after BEGIN com-
mand will be executed in a single transaction until an explicit COMMIT [commit(7)] or ROLLBACK [rollback(7)]. Statements are executed more
quickly in chained mode, because transaction start/commit requires significant CPU and disk activity. Execution of multiple statements
inside a transaction is also useful to ensure consistency when changing several related tables: other clients will be unable to see the
intermediate states wherein not all the related updates have been done.
The default transaction isolation level in PostgreSQL is READ COMMITTED, wherein each query inside the transaction sees changes committed
before that query begins execution. So, you have to use SET TRANSACTION ISOLATION LEVEL SERIALIZABLE just after BEGIN if you need more rig-
orous transaction isolation. (Alternatively, you can change the default transaction isolation level; see the PostgreSQL Administrator's
Guide for details.) In SERIALIZABLE mode queries will see only changes committed before the entire transaction began (actually, before
execution of the first DML statement in the transaction).
Transactions have the standard ACID (atomic, consistent, isolatable, and durable) properties.
NOTES
START TRANSACTION [start_transaction(7)] has the same functionality as BEGIN.
Use COMMIT [commit(7)] or ROLLBACK [rollback(7)] to terminate a transaction.
Refer to LOCK [lock(7)] for further information about locking tables inside a transaction.
If you turn autocommit mode off, then BEGIN is not required: any SQL command automatically starts a transaction.
USAGE
To begin a user transaction:
BEGIN WORK;
COMPATIBILITY
SQL92
BEGIN is a PostgreSQL language extension. There is no explicit BEGIN command in SQL92; transaction initiation is always implicit and it
terminates either with a COMMIT or ROLLBACK statement.
Note: Many relational database systems offer an autocommit feature as a convenience.
Incidentally, the BEGIN keyword is used for a different purpose in embedded SQL. You are advised to be careful about the transaction seman-
tics when porting database applications.
SQL92 also requires SERIALIZABLE to be the default transaction isolation level.
SQL - Language Statements 2002-11-22 BEGIN(7)