I have a pipe delimited file. Key is field 2, date is field 5 (as example, my real file is more complicated of course, but the KEY and DATE are accurate)
There can be duplicate rows for a key with different dates.
I need to keep only rows with latest date in this case.
Example data: ... (4 Replies)
I want to write a scrpit to merge files row wise (actually concatinating)
main.txt
X Y Z
file 1
A B C
file 2
1 2 3
now i want the script to check if the file1 is empty or not, if empty then make it like
A B C
1 2 3
again to check if second file is empty if not do as done... (0 Replies)
Hello All:
I've file in below format. File name is "FIRSTN.TBL":
AAAAAA N
BBBBBBBBBBBBBBBBBBBBBBB N
.
.
.
.
ZZZZZZZZZZZZZZZZZZZZZZZZZZ N
My file row length is 40 characters and my second column will start from 25th column and it is only... (3 Replies)
Hi, I need somebody's help with sorting data with awk.
I've got a file:
10 aaa 4584
12 bbb 6138
20 ccc 4417
21 ddd 7796
10 eee 7484
12 fff ... (5 Replies)
Hi Friends,
I have a single column data like below.
1
2
3
4
5
I need the output like below.
0
1
2
3
4
where each row (including first row) subtracting from first row and the result should print below like the way shown in output file.
Thanks
Sid (11 Replies)
input:
ref001, Europe, Belgium, 1001
ref001, Europe, Spain, 203
ref001, Europe, Germany, 457
ref002, America, Canada, 234
ref002, America, US, 87
ref002, America, Alaska, 652
Without using an END section, I need to write all the info related to the same ref number ($1)and continent ($2) on... (9 Replies)
how can i sort the table based on first row? thanks in advance
input
name d b c a
l l1 l2 l3 l4
l1 1 2 3 4
l2 2 2 2 1
l3 1 1 2 2ouput
name a b c d
l1 l4 ... (4 Replies)
Hi, I have a file like
aa bb dmns|860 dmns|756 ee ff
aa bb dmns|310 dmns|260 ee ff
aa bb dmns|110 dmns|77 ee ff
aa bb dmns|756 dmns|860 ee ff
aa bb dmns|110 dmns|77 ee ff
aa bb dmns|233 dmns|79 ee ff
aa bb dmns|79 dmns|233 ee ff
I want to sort the values in column3 and column4... (2 Replies)
Dear all, will be thankful if you can help on sort command.
My data looks like (tab separated; number of columns 2317; N of rows ~200000):
a b c d V10 V2 V8 V4 V7
xx z y 1000 1 2 0 2 0
tr v m 1001 0 0 1 2 2
rg s ... (7 Replies)
Discussion started by: kush
7 Replies
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spi_modifytuple
SPI_MODIFYTUPLE(3) PostgreSQL 9.2.7 Documentation SPI_MODIFYTUPLE(3)NAME
SPI_modifytuple - create a row by replacing selected fields of a given row
SYNOPSIS
HeapTuple SPI_modifytuple(Relation rel, HeapTuple row, int ncols,
int * colnum, Datum * values, const char * nulls)
DESCRIPTION
SPI_modifytuple creates a new row by substituting new values for selected columns, copying the original row's columns at other positions.
The input row is not modified.
ARGUMENTS
Relation rel
Used only as the source of the row descriptor for the row. (Passing a relation rather than a row descriptor is a misfeature.)
HeapTuple row
row to be modified
int ncols
number of column numbers in the array colnum
int * colnum
array of the numbers of the columns that are to be changed (column numbers start at 1)
Datum * values
new values for the specified columns
const char * Nulls
which new values are null, if any (see SPI_execute_plan for the format)
RETURN VALUE
new row with modifications, allocated in the upper executor context; NULL only if row is NULL
On error, SPI_result is set as follows:
SPI_ERROR_ARGUMENT
if rel is NULL, or if row is NULL, or if ncols is less than or equal to 0, or if colnum is NULL, or if values is NULL.
SPI_ERROR_NOATTRIBUTE
if colnum contains an invalid column number (less than or equal to 0 or greater than the number of column in row)
PostgreSQL 9.2.7 2014-02-17 SPI_MODIFYTUPLE(3)