Here is the updated code with the implicit cursor. You can take out the filter "WHERE rownum < 8". Let me know what your grade is. I should get some credit.
dear friends,
I have a large size file containg two fields data
like this
*** ****
122 222
***** *****
***** *****
232 233
i have file like this.
i want to remove blank lines from file .
i think awk is servive this problem
i wrote a awk command but the error is... (3 Replies)
Dear friends,
I am writing shell script in csh .
i want to make arthimatic operation in csh.
i wrote sysntax like this.
set val = 230
set tmp = `0.1 * $val + 300`
echo $tmp
but it is not working .
anyone please give me syntax. (3 Replies)
m kinda new to unix. i have been trying to write a script where i am trying to switch between users.
but the problem is that the syntax like USERNAME/PASSWORD (like oracle SCOT/TIGER) is not working.
if i write su USERNAME then the script goes to the command prompt and asks for user to enter... (0 Replies)
I am calculating a time and appending a space in front of it to get only certain records in a file because the times are represented in HH:II:SS format and I don't want to see anything other than the actual hour and minute combination (hence appending the space to the front of the time). My... (9 Replies)
I have one File named "txt_file"
# cat txt_file
<DBType>RT</DBType>
<AppType>RT</AppType>
--------------------------------------------------
I want replace "<AppType>RT</AppType>" to
<AppType>XY</AppType> in txt_file and output redirect to Newfile
... (2 Replies)
Hi guys,
Basically I'm trying to write a CShell script that calls an awk script on a given directory (given in command-line). I keep getting a syntax error with my code though:
#!/bin/csh
set dir = $ARGV
foreach file ( $dir/* )
set output = 'awk -f /Desktop/aal $file'
echo... (3 Replies)
Hello,
I have perl script,which take some part of data in the file.
the below command works fine in normal cmd prompt.
`awk '/CDI/ && // && !/Result for/ {print $3 $5 > "final.txt"}' datalist.txt`;
`nawk -F"" '{print $2}' finalcdi.txt`;
But not working.
Please use code tags, thanks. (5 Replies)
I'm calling the following if-else from nawk. But I keep getting an error at the "else". I've tried putting more brackets and ; but still I get complaints about the "else".
Any ideas ?
Thanks,
wbrunc
BEGIN { FS = "," ; OFS = "," }
{ if ( $8 ~ /A/ && $9 == B )
$1="4/29/2013" ;
$2="J.Doe"... (2 Replies)
awk -v sw="lemons|dogs" 'NR>100 && NR<200 BEGIN { c=split(sw,a,""); } { for (w in a) { if ($0 ~ a) d]++; } }
END { for (i in a) { o=o (a"="(d]?d]:0)","); }
sub(",*$","",o); print o;
}' /home/jahitt/data.txt
what am i doing wrong with the above code? im pretty sure the issue is in the... (6 Replies)
Discussion started by: SkySmart
6 Replies
LEARN ABOUT REDHAT
update
UPDATE(7) SQL Commands UPDATE(7)NAME
UPDATE - update rows of a table
SYNOPSIS
UPDATE [ ONLY ] table SET col = expression [, ...]
[ FROM fromlist ]
[ WHERE condition ]
INPUTS
table The name (optionally schema-qualified) of an existing table. If ONLY is specified, only that table is updated. If ONLY is not speci-
fied, the table and all its descendant tables (if any) are updated. * can be appended to the table name to indicate that descendant
tables are to be scanned, but in the current version, this is the default behavior. (In releases before 7.1, ONLY was the default
behavior.) The default can be altered by changing the SQL_INHERITANCE configuration option.
column The name of a column in table.
expression
A valid expression or value to assign to column.
fromlist
A PostgreSQL non-standard extension to allow columns from other tables to appear in the WHERE condition.
condition
Refer to the SELECT statement for a further description of the WHERE clause.
OUTPUTS
UPDATE #
Message returned if successful. The # means the number of rows updated. If # is 0 no rows are updated.
DESCRIPTION
UPDATE changes the values of the columns specified for all rows which satisfy condition. Only the columns to be modified need appear as
columns in the statement.
Array references use the same syntax found in SELECT [select(7)]. That is, either single array elements, a range of array elements or the
entire array may be replaced with a single query.
You must have write access to the table in order to modify it, as well as read access to any table whose values are mentioned in the WHERE
condition.
By default UPDATE will update tuples in the table specified and all its sub-tables. If you wish to only update the specific table men-
tioned, you should use the ONLY clause.
USAGE
Change word Drama with Dramatic on column kind:
UPDATE films
SET kind = 'Dramatic'
WHERE kind = 'Drama';
SELECT *
FROM films
WHERE kind = 'Dramatic' OR kind = 'Drama';
code | title | did | date_prod | kind | len
-------+---------------+-----+------------+----------+-------
BL101 | The Third Man | 101 | 1949-12-23 | Dramatic | 01:44
P_302 | Becket | 103 | 1964-02-03 | Dramatic | 02:28
M_401 | War and Peace | 104 | 1967-02-12 | Dramatic | 05:57
T_601 | Yojimbo | 106 | 1961-06-16 | Dramatic | 01:50
DA101 | Das Boot | 110 | 1981-11-11 | Dramatic | 02:29
COMPATIBILITY
SQL92
SQL92 defines a different syntax for the positioned UPDATE statement:
UPDATE table SET column = expression [, ...]
WHERE CURRENT OF cursor
where cursor identifies an open cursor.
SQL - Language Statements 2002-11-22 UPDATE(7)