Pass values read from a file as input to an SQL query in Oracle

Question

#cat file.txt
 12354
 13456
 13498

---

#!/bin/bash
for i in `cat file.txt`
do
    sqlplus XXXXX/XXXXX@DB_NAME << EOF 
        selec         


        

Answer 1

Here is the right way to use the heredoc <<, along with the choice of while read instead of for to read the file:

#!/bin/bash

while read -r value; do
  sqlplus xxxxx/xxxxx@db_name << EOF
    select * from table_name where id='$value';
    # make sure heredoc marker "EOF" is not indented
EOF
done < file.txt

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See also:

• How can I write a here doc to a file in Bash script?

• BashFAQ001 to understand why for loop is not the best way to read text lines from a file.