Started a script to call the function

.gitignore

@@ -0,0 +1 @@
+*.db

insert_data.sql

@@ -1,5 +1,4 @@
-INSERT INTO customers (ID, NAME, SURNAME, CITY, PLZ)
-VALUES(1, 'Egger', 'Stefan', 'St. Gallen', '9000')
-VALUES(2, 'Müller', 'Sepp', 'St.Gallen', '9000')
-VALUES(3, 'Kurt', 'Kurtl', 'St. gallen', '9000')
-VALUES(3, 'Kurt', 'Kurtl', 'St.gallen', '9000')
+INSERT INTO customers VALUES(1, 'Egger', 'Stefan', 'St. Gallen', '9000');
+INSERT INTO customers VALUES(2, 'Müller', 'Sepp', 'St.Gallen', '9000');
+INSERT INTO customers VALUES(3, 'Kurt', 'Kurtl', 'St. gallen', '9000');
+INSERT INTO customers VALUES(4, 'Kurt', 'Kurtl', 'St.gallen', '9000');

script.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+if [[ $1 -eq "0" ]]; then
+    sqlite3 test.db ".read create_db.sql"
+elif [[ $1 -eq "1" ]]; then
+    sqlite3 test.db ".read insert_data.sql"
+elif [[ $1 -eq "9" ]]; then
+    sqlite3 test.db ".read show_all.sql"
+fi

show_all.sql

@@ -0,0 +1 @@
+SELECT * from customers;