Shell script for insert multiple records into a Database - shell

Question

I have a table in an Informix DB into which I want to insert multiple records at a time.
Data for one of the column should be unique & other column data may be the same for all the records I insert
Typical Insert Statement I use to insert one row :
insert into employee(empid, country, state) values(1, us, ca)
Now I want to pass different values for the 'empid' column, & data in rest of the columns can remain the same.
I am looking for something like looping empid & prompting user to enter the Start & End range of values for empid
When User enters Start Value as 1 & End Value as 100, the script should inset 100 records with empid's from 1 to 100

Answer 1

Please notice that you need to pass the start and end parameters as input arguments to your script:
#!/bin/sh
start=$1
end=$2
while [[ $start -le $end ]];
do
echo "insert into employee(empid, country, state) values(${start}, us, ca)"
start=`expr $start + 1`
done

Answer 2

This solution uses a stored procedure to wrap the insert statement in a loop. Probably more suitable for a large amount of data where performance is critical:
File InsertEmployee.sql
drop procedure InsertEmployee;
create procedure InsertEmployee(
p_start_empid like employee.empid,
p_end_empid like employee.empid,
p_country like employee.country,
p_state like employee.state
) returning char(255);
define i integer;
let i = p_start_empid;
while i <= p_end_empid
insert into employee (
empid,
country,
state
) values (
i,
p_country,
p_state
);
-- logging
-- if (DBINFO('sqlca.sqlerrd2') > 0) then
-- return "inserted empid=" || i || " country=" || p_country || " state=" || p_state with resume;
-- end if
let i = i + 1;
end while;
end procedure;
Load stored procedure into your database:
dbaccess mydatabasename InsertEmployee.sql
Call the stored procedure from the shell prompt:
echo 'execute procedure InsertEmployee(1,100,"us","ca");' | dbaccess mydatabasename

Answer 3

#!/bin/bash
declare -a namesArray=("name1","name2","name3")
inserts=""
for i in "{arr[#]}"
do
inserts+="INSERT INTO persons(id, name) VALUES (0,'$i');"
done
echo $inserts | dbaccess yourDataBase
That will insert 3 rows (i asume that your primary key is serial number, thats why is 0 in values field). In informix you cannot add multiple rows in the same insert, thats why i create an insert per row.
Informix: INSERT INTO table VALUES(0);
mySQL & SQL Server: INSERT INTO table VALUES(0),(1),(2); <- 3 rows