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Editorial Team
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Asked: 2026-06-18T16:25:47+00:00

I just started learning MYSQL in college and I have an important assignment to

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I just started learning MYSQL in college and I have an important assignment to do for my class. I have to create a small database and I can’t seem to add a table with foreign keys because of the errno(150)
Here’s what I have.

create table Country
(CountryName varchar (50) not null,
Primary Key (CountryName));

create table InterestGroup
(IntrestgrpName varchar (30) not null,
Primary Key (IntrestgrpName));

create table Organisation
(OrgName varchar (50) not null,
OrgAddress varchar (30),
OrgTelNo.varchar (30),
Primary Key (OrgName));

create table Qualification
(QualName varchar (50) not null,
Primary Key (QualName));

create table Member
(MemberID varchar (15) not null,
MemberName varchar (30),
MemberAdd varchar (50) not null,
CountryName varchar (50) not null,
IntrestgrpName varchar (30) not null,
QualName varchar (50) not null,
OrgName varchar (50) not null,
Primary Key (MemberID),
Foreign Key (CountryName) References Country (CountryName),
Foreign Key (IntrestgrpName) References InterestGroup (InterestgrpName),
Foreign Key (QualName) References Qualification (Qualname),
Foreign Key (OrgName) References Organisation (OrgName));

I cant seem to get the Member table to be created, It gives this error,
ERROR 1005 (HY000): Can’t create table ‘iicp.member’ (errno: 150)
Thanks in advance for the help, I really need to solve this

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1 Answer

  1. Editorial Team

    here the working query

    create table Country
(CountryName varchar (50) not null,
Primary Key (CountryName));

create table InterestGroup
(IntrestgrpName varchar (30) not null,
Primary Key (IntrestgrpName));

create table Organisation
(OrgName varchar (50) not null,
OrgAddress varchar (30),
OrgTelNo varchar (30),
Primary Key (OrgName));

create table Qualification
(QualName varchar (50) not null,
Primary Key (QualName));

create table Member
(MemberID varchar (15) not null ,
MemberName varchar (30),
MemberAdd varchar (50) not null,
CountryName varchar (50) not null,
IntrestgrpName varchar (30) not null,
QualName varchar (50) not null,
OrgName varchar (50) not null,
Primary Key (MemberID), 
Foreign Key (CountryName) References Country (CountryName),
Foreign Key (IntrestgrpName) References InterestGroup (IntrestgrpName),
Foreign Key (QualName) References Qualification (Qualname),
Foreign Key (OrgName) References Organisation (OrgName));

    DEMO HERE SQLFIDDLE

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