Inserting data from frontend in foreign key through query
0
I'm trying to pass the data (post method) from Angular to Postgresql via Nodejs. How to insert foreign key value from frontend (dynamically) in insert query ?
query1:
INSERT INTO tab_student (name_student, id_teacher_fk)
VALUES ('abc',
(SELECT id_teacher FROM tab_teacher WHERE id_teacher_pk = ? )
//how do we get the foreign key id_teacher_fk from frontend
query 2:
INSERT INTO tab_student (name_student, id_teacher_fk)
VALUES ('rich man', LAST_INSERT_ID())
sql postgresql
asked Nov 21 at 11:19
GMB
196
add a comment |
0
I'm trying to pass the data (post method) from Angular to Postgresql via Nodejs. How to insert foreign key value from frontend (dynamically) in insert query ?
query1:
INSERT INTO tab_student (name_student, id_teacher_fk)
VALUES ('abc',
(SELECT id_teacher FROM tab_teacher WHERE id_teacher_pk = ? )
//how do we get the foreign key id_teacher_fk from frontend
query 2:
INSERT INTO tab_student (name_student, id_teacher_fk)
VALUES ('rich man', LAST_INSERT_ID())
sql postgresql
asked Nov 21 at 11:19
GMB
196
@wildplasser how do I insert the value into foreign key from frontend ,should I use "INSERT INTO emp (name,id) values ('abc',LAST_INSERT_ID())" ?
– GMB
Nov 21 at 11:33
1
There is nolast_insert_id()in Postgres. Are you looking forlastval()?
– a_horse_with_no_name
Nov 21 at 11:36
What information does the frontend have on the teacher? Is the teacher allready present in the tab_teachers table?
– wildplasser
Nov 21 at 11:51
frontend on teacher : teacher_id ,name , designation department . frontend on student : stud_id ,name,class (At the backend teacher_id is a foreign key in student table how could i update teacher_id in student table ? )
– GMB
Nov 21 at 12:04
add a comment |
0
0
0
I'm trying to pass the data (post method) from Angular to Postgresql via Nodejs. How to insert foreign key value from frontend (dynamically) in insert query ?
query1:
INSERT INTO tab_student (name_student, id_teacher_fk)
VALUES ('abc',
(SELECT id_teacher FROM tab_teacher WHERE id_teacher_pk = ? )
//how do we get the foreign key id_teacher_fk from frontend
query 2:
INSERT INTO tab_student (name_student, id_teacher_fk)
VALUES ('rich man', LAST_INSERT_ID())
sql postgresql
asked Nov 21 at 11:19
GMB
196
I'm trying to pass the data (post method) from Angular to Postgresql via Nodejs. How to insert foreign key value from frontend (dynamically) in insert query ?
query1:
INSERT INTO tab_student (name_student, id_teacher_fk)
VALUES ('abc',
(SELECT id_teacher FROM tab_teacher WHERE id_teacher_pk = ? )
//how do we get the foreign key id_teacher_fk from frontend
query 2:
INSERT INTO tab_student (name_student, id_teacher_fk)
VALUES ('rich man', LAST_INSERT_ID())
sql postgresql
sql postgresql
asked Nov 21 at 11:19
GMB
196
asked Nov 21 at 11:19
GMB
196
edited Nov 21 at 11:30
asked Nov 21 at 11:19
GMB
196
asked Nov 21 at 11:19
GMB
196
asked Nov 21 at 11:19
GMB
196
196
@wildplasser how do I insert the value into foreign key from frontend ,should I use "INSERT INTO emp (name,id) values ('abc',LAST_INSERT_ID())" ?
– GMB
Nov 21 at 11:33
1
There is nolast_insert_id()in Postgres. Are you looking forlastval()?
– a_horse_with_no_name
Nov 21 at 11:36
What information does the frontend have on the teacher? Is the teacher allready present in the tab_teachers table?
– wildplasser
Nov 21 at 11:51
frontend on teacher : teacher_id ,name , designation department . frontend on student : stud_id ,name,class (At the backend teacher_id is a foreign key in student table how could i update teacher_id in student table ? )
– GMB
Nov 21 at 12:04
add a comment |
@wildplasser how do I insert the value into foreign key from frontend ,should I use "INSERT INTO emp (name,id) values ('abc',LAST_INSERT_ID())" ?
– GMB
Nov 21 at 11:33
1
There is nolast_insert_id()in Postgres. Are you looking forlastval()?
– a_horse_with_no_name
Nov 21 at 11:36
What information does the frontend have on the teacher? Is the teacher allready present in the tab_teachers table?
– wildplasser
Nov 21 at 11:51
frontend on teacher : teacher_id ,name , designation department . frontend on student : stud_id ,name,class (At the backend teacher_id is a foreign key in student table how could i update teacher_id in student table ? )
– GMB
Nov 21 at 12:04
@wildplasser how do I insert the value into foreign key from frontend ,should I use "INSERT INTO emp (name,id) values ('abc',LAST_INSERT_ID())" ?
– GMB
Nov 21 at 11:33
@wildplasser how do I insert the value into foreign key from frontend ,should I use "INSERT INTO emp (name,id) values ('abc',LAST_INSERT_ID())" ?
– GMB
Nov 21 at 11:33
1
1
There is no
last_insert_id() in Postgres. Are you looking for lastval()?– a_horse_with_no_name
Nov 21 at 11:36
There is no
last_insert_id() in Postgres. Are you looking for lastval()?– a_horse_with_no_name
Nov 21 at 11:36
What information does the frontend have on the teacher? Is the teacher allready present in the tab_teachers table?
– wildplasser
Nov 21 at 11:51
What information does the frontend have on the teacher? Is the teacher allready present in the tab_teachers table?
– wildplasser
Nov 21 at 11:51
frontend on teacher : teacher_id ,name , designation department . frontend on student : stud_id ,name,class (At the backend teacher_id is a foreign key in student table how could i update teacher_id in student table ? )
– GMB
Nov 21 at 12:04
frontend on teacher : teacher_id ,name , designation department . frontend on student : stud_id ,name,class (At the backend teacher_id is a foreign key in student table how could i update teacher_id in student table ? )
– GMB
Nov 21 at 12:04
add a comment |
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@wildplasser how do I insert the value into foreign key from frontend ,should I use "INSERT INTO emp (name,id) values ('abc',LAST_INSERT_ID())" ?
– GMB
Nov 21 at 11:33
1
There is no
last_insert_id()in Postgres. Are you looking forlastval()?– a_horse_with_no_name
Nov 21 at 11:36
What information does the frontend have on the teacher? Is the teacher allready present in the tab_teachers table?
– wildplasser
Nov 21 at 11:51
frontend on teacher : teacher_id ,name , designation department . frontend on student : stud_id ,name,class (At the backend teacher_id is a foreign key in student table how could i update teacher_id in student table ? )
– GMB
Nov 21 at 12:04