[symfony-users] Re: Add Foreign Key to mysql table

[DEEPAK BHATIA]

Hi,

The problem is solved when I run below command

ALTER TABLE projecttype_table TYPE=InnoDB;

Thanks

Deepak Bhatia

On 4/2/09, whalexis  wrote:
>
>
> Hi you should have a look at this
> http://dev.mysql.com/doc/refman/5.1/en/innodb-foreign-key-constraints.html
> Everything you need is there
>
> On Apr 2, 4:10 am, DeepakBhatia  wrote:
> > I have two tables as given below. I need to add a column in
> > project_table which is INT and refers to the projecttype_table(id)
> > field.
> >
> > project_table
> > {
> > Name Varchar(100)
> >
> > }
> >
> > projecttype_table
> > {
> > id INT AUTO INCREMENT NOT NULL,
> > projecttype_name Varchar(50)
> >
> > }
> >
> > Approach #1
> > ===
> >
> > mysql> alter table project_table add foreign key(project_type)
> > references projecttype_table(id);
> > ERROR 1005 (HY000): Can't create table 'rtdb2.#sql-358a_96c' (errno:
> > 150)
> >
> > Approach #2
> > ===
> > mysql> ALTER TABLE project_table TYPE=InnoDB;
> > Query OK, 7 rows affected, 1 warning (0.02 sec)
> > Records: 7 Duplicates: 0 Warnings: 0
> >
> > mysql> alter table project_table add Foreign key (project_type)
> > REFERENCES projecttype_table(id);
> > ERROR 1005 (HY000): Can't create table 'rtdb2.#sql-358a_96c' (errno:
> > 150)
> >
>

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[symfony-users] Re: Add Foreign Key to mysql table

[whalexis]

Hi you should have a look at this 
http://dev.mysql.com/doc/refman/5.1/en/innodb-foreign-key-constraints.html
Everything you need is there

On Apr 2, 4:10 am, DeepakBhatia  wrote:
> I have two tables as given below. I need to add a column in
> project_table which is INT and refers to the projecttype_table(id)
> field.
>
> project_table
> {
> Name Varchar(100)
>
> }
>
> projecttype_table
> {
> id INT AUTO INCREMENT NOT NULL,
> projecttype_name Varchar(50)
>
> }
>
> Approach #1
> ===
>
> mysql> alter table project_table add foreign key(project_type)
> references projecttype_table(id);
> ERROR 1005 (HY000): Can't create table 'rtdb2.#sql-358a_96c' (errno:
> 150)
>
> Approach #2
> ===
> mysql> ALTER TABLE project_table TYPE=InnoDB;
> Query OK, 7 rows affected, 1 warning (0.02 sec)
> Records: 7 Duplicates: 0 Warnings: 0
>
> mysql> alter table project_table add Foreign key (project_type)
> REFERENCES projecttype_table(id);
> ERROR 1005 (HY000): Can't create table 'rtdb2.#sql-358a_96c' (errno:
> 150)
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[symfony-users] Re: Add Foreign Key to mysql table

[DeepakBhatia]

I have two tables as given below. I need to add a column in
project_table which is INT and refers to the projecttype_table(id)
field.

project_table
{
Name Varchar(100)
}

projecttype_table
{
id INT AUTO INCREMENT NOT NULL,
projecttype_name Varchar(50)
}

Approach #1
===

mysql> alter table project_table add foreign key(project_type)
references projecttype_table(id);
ERROR 1005 (HY000): Can't create table 'rtdb2.#sql-358a_96c' (errno:
150)

Approach #2
===
mysql> ALTER TABLE project_table TYPE=InnoDB;
Query OK, 7 rows affected, 1 warning (0.02 sec)
Records: 7 Duplicates: 0 Warnings: 0

mysql> alter table project_table add Foreign key (project_type)
REFERENCES projecttype_table(id);
ERROR 1005 (HY000): Can't create table 'rtdb2.#sql-358a_96c' (errno:
150)

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