I would like to know value for previous row, in addition to current row.
How would I will get value for previous row? How can I perform this with awk? (2 Replies)
It is my first post, hoping to get help from the forum.
In a directory, I have 5000 multiple files that contains around 4000 rows with 10 columns in each file containing a unique string 'AT' located at 4th column.
OM 3328 O BT 268 5.800 7.500 4.700 0.000 ... (9 Replies)
Dear masters,
I stuck again in a very tricky situation,so need your valuable inputs. I have a file having rows as below:
_Db
_Database 1023 1 1 1 17.0B 0.2 1.0
_Field
_Field-Name 3 2 2 11 56.2K 64.1 ... (5 Replies)
Hello,
I want to add a new row to a file to insert data without deleting the previous data there.
Example:
file
a
b
c
d
Output
a
b
newtext
c (6 Replies)
My original files are like this below and I distinguish them from the AP_ID (file1 has 572 and file2 has 544). Also, the header on file1 has “G_” pre-pended. NOTE: these are only snippets of very large files and much of the data is not present here.
Original File 1:
... (36 Replies)
Hi,
I am trying to extract data where first field unique value and 4th field of next row is grater than first row 4th field.
input data is a below:
7035719974,20-jul-2016 07:42:51,07:42:51,074251,1
7035719974,20-jul-2016 07:43:57,07:43:57,074357,2
7399206761,20-jul-2016... (2 Replies)
Hi ALL,
We have requirement in a file, i have multiple rows.
Example below:
Input file rows
01,1,102319,0,0,70,26,U,1,331,000000113200000011920000001212
01,1,102319,0,1,80,20,U,1,241,00000059420000006021
I need my output file should be as mentioned below. Last field should split for... (4 Replies)
Hi,
I have the following content in file
ABBR DESC COL3 COL4 COL5 COL6
AAA text desc aaa text text text text
text text text text
text text text text
BBB text desc bbb text text text text
text text text text
CCC ... (10 Replies)
This is a question that is related to one I had last August when I was trying to sort/merge two files by millsecond time column (in this case column 6).
The script (below) that helped me last august by RudiC solved the puzzle of sorting/merging two files by time, except it gets lost when the... (0 Replies)
Discussion started by: aachave1
0 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)