Hi,
My input file is
$cat samp
1 siva
1 raja
2 siva
1 siva
2 raja
4 venkat
i want sort this name wise...alos need to remove duplicate lines.
i am using
cat samp|awk '{print $2,$1}'|sort -u
it showing
raja 1 (3 Replies)
I have a column of numbers in the following format:
1.722e-05
2.018e-05
2.548e-05
2.747e-05
7.897e-05
4.016e-05
4.613e-05
4.613e-05
5.151e-05
5.151e-05
5.151e-05
6.1e-05
6.254e-05
7.04e-05
7.12e-05
7.12e-05 (6 Replies)
My scenario is that I need to pick value from third column based on fourth column value, if fourth column value is 1 then first value of third column.Third column (2|3|4|6|1) values are cancatenated.
Please someone help me to resolve this issue.
Source
column1 column2 column3 column4... (2 Replies)
Hi,
I have a similar input format-
A_1 2
B_0 4
A_1 1
B_2 5
A_4 1
and looking to print in this output format with headers. can you suggest in awk?awk because i am doing some pattern matching from parent file to print column 1 of my input using awk already.Thanks!
letter number_of_letters... (5 Replies)
Hi,
i need to sort content of files based on a specific value. An example as below.
Input1.txt
Col_1
SW_MH2_ST
ST_F72_9S
SW_MH3_S6
Col_2
SW_MH3_AS7
ST_S15_9CH
SW_MH3_AS8
SW_MH3_ST
Col_3
ST_M93_SZ
ST_C16_TC (12 Replies)
Hi All ,
I am having an input file like this
Input file
7 sks/jsjssj/ddjd/hjdjd/hdhd/Q 10 0.5 13
dkdkd/djdjd/djdjd/djd/QB 01 0.5
ldld/dkd/jdf/fjfjf/fjf/Q 0.5
10 sjs/jsdd/djdkd/dhd/Q 01 0.5 21
kdkd/djdd/djdd/jdd/djd/QB 01 0.5
dkdld/djdjd/djd/Q 01 0.5
... (9 Replies)
Discussion started by: kshitij
9 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)