create SQL-statements from textfile with awk

for each in `cut -d " " -f 1 inputfile.txt`; do echo "select * from table where id = \"$each\";"; done
I never can remember the syntax of awk. You can give a different -d option to cut to separate by e.g. commas. Also this allows to do more things with the generated SQL, e.g. to redirect it into different files.
Sample Output
select * from table where id = "1";
select * from table where id = "2";
select * from table where id = "3";

0
By: hfs
2009-09-23 13:29:16

1 Alternatives + Submit Alt

  • inputfile.txt is a space-separated textfile, 1st column contains the items (id) I want to put into my SQL statement. 39 = charactercode for single tick ' 1 = first column If inputfile.txt is a CSV-file separated by "," use FS= to define your own field-separator: awk 'BEGIN {FS=","; }{printf "select * from table where id = %c%s%c;\n",39,$1,39; }' inputfile.txt Show Sample Output


    2
    $ awk '{printf "select * from table where id = %c%s%c;\n",39,$1,39; }' inputfile.txt
    alvinx · 2009-09-21 14:08:04 0

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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