05-09-2005
join on multiple fields
Is it possible to do a join on multiple fields of two files? I am trying to do something like join -t, -1 2,3 -2 2,3 -o 2.1,2.2,2.3,1.3 filea fileb
I want the join to be on columns 2 and 3 of filea and columns 2 and 3 of fileb.
What is hapenning is that the second file that I want to do the join on is being ignored.
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I've looked at the join command which is able to perform what I need on two rows with a common field, however if I have more than two rows I need to join all of them.
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example sql:
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Hi, I need help with the join command
I have 2 files that I want to join on multiple fields.
I want to return all records from file 1
I also want empty fields in my joined file if there isn't a match in file 2
I have already sorted them so I know they are in the same order.
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My input is as below:
1|2|3|a02 test|303
2|2|4|1002 a05 ind|303
4|3|5|ind|30
Output
1|2|3|a02test|303
2|2|4|a05ind|303
4|3|5|ind|30
I used command:
I am getting above output. Is there any simple way using awk to acheive this.
Thanks.
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a,b,c,d,8,,,
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a,b,p,e,8,,,
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LEARN ABOUT SUSE
tk_getjoinstyle
Tk_GetJoinStyle(3) Tk Library Procedures Tk_GetJoinStyle(3)
__________________________________________________________________________________________________________________________________________________
NAME
Tk_GetJoinStyle, Tk_NameOfJoinStyle - translate between strings and join styles
SYNOPSIS
#include <tk.h>
int
Tk_GetJoinStyle(interp, string, joinPtr)
const char *
Tk_NameOfJoinStyle(join)
ARGUMENTS
Tcl_Interp *interp (in) Interpreter to use for error reporting.
const char *string (in) String containing name of join style: one of "bevel", "miter", or "round".
int *joinPtr (out) Pointer to location in which to store X join style corresponding to string.
int join (in) Join style: one of JoinBevel, JoinMiter, JoinRound.
_________________________________________________________________
DESCRIPTION
Tk_GetJoinStyle places in *joinPtr the X join style corresponding to string, which will be one of JoinBevel, JoinMiter, or JoinRound. Join
styles are typically used in X graphics contexts to indicate how adjacent line segments should be joined together. See the X documentation
for information on what each style implies.
Under normal circumstances the return value is TCL_OK and interp is unused. If string does not contain a valid join style or an abbrevia-
tion of one of these names, then an error message is stored in interp->result, TCL_ERROR is returned, and *joinPtr is unmodified.
Tk_NameOfJoinStyle is the logical inverse of Tk_GetJoinStyle. Given a join style such as JoinBevel it returns a statically-allocated
string corresponding to join. If join is not a legal join style, then "unknown join style" is returned.
KEYWORDS
bevel, join style, miter, round
Tk Tk_GetJoinStyle(3)