Script to copy one column data to another column - sql

Question

I am writing a script to copy one column data to another column.
Tried with following logic bud didnt worked out-
o/p- number of parameter is 0.
My Logic-
• I got the keys from the admintable and then copied the data to some updateupdateStatement file.
• Using awk command I copied specific column data to some temp file
• Then prepared an update statement and then executed it.
#!/bin/ksh
#
# Script to Populate cross_refs based on what is in cross_references
#
#
echo "number of parameters is $#"
if [ $# != 1 ]; then
USAGE="USAGE: $0 cassPassword"
echo ${USAGE}
exit 1
fi
cassPassword=$1
#Add column to admin table
#echo "alter table to add column..."
#echo "ALTER TABLE admin.product ADD cross_refs Map<String,String>;" > updateTable.cql
#cqlsh -u dgadmin -p ${cassPassword} -f updateTable.cql
echo "get keys from cassandra"
echo "copy admin.product (cross_references) to 'updateupdateProductStatement.cql';" > copyInputs.cql
cqlsh -u dgadmin -p ${cassPassword} -f copyInputs.cql
#Convert file that Cassandra created from DOS to Unix
echo "DOS to Unix conversion..."
tr -d '\015' <updateupdateProductStatement.cql >updateupdateProductStatement2.cql
cat updateupdateProductStatement2.cql >tempFile
sed -i "s/^/update admin.product set cross_refs = '/" tempFile
#execute the updated .cql file to run all the update statements
echo "executing updateupdateProductStatement.cql..."
cqlsh -u dgadmin -p ${cassPassword} -f tempFile

Answer 1

I'm not absolutely certain I understand the intent of your script, but I can pick out one line that looks suspect...
cat updateFlatFileInputStatements2.cql |awk -F'\t' '{ 19 1 2}' >tempFile
I think you want to print columns 19, 1 and 2 to your output...
awk -F'\t' 'BEGIN { OFS=" " }{ print $19, $1, $2 }' updateFlatFileInputStatements2.cql > tempFile
Better is to do all the manipulation of tempFile in awk
awk -F'\t' "{ print \"update admin.product set my_refs = \" \$19 \" where id = \" $1 \" and effective_date = \" $2 \"';\"" updateFlatFileInputStatements2.cql > tempFile
Then again, I don't see in your file where tempFile is used... or where updateFlatFileInputStatements2.cql is generated. Looks like this piece of code is doing nothing?
updateupdateStatement.cql ... don't know where that comes from. This then is stripped to form updateupdateStatement2.cql ... which then is manipulated to become tempFile but... you don't use tempFile -- instead you send updateupdateStatement2.cql to cqlsh. The bug may be that you intended to send tempFile instead to your final cqlsh.