I installed a fresh copy mySQL-4.1alpha on XP. I ran it standalone as follows:
mysqld-max --standalone --console --default-table-type=innodb I get the same results with my script. Since I didn't specify a character set, I assume it is the default (ISO-8859-1) set as specified in the Section 4.6.1 of the 4.1 manual. I appreciate any and all help. For now, I am having to disable foreign key integrity constraint checking. Ed --- Victoria Reznichenko <[EMAIL PROTECTED]> wrote: > Ed Smith <[EMAIL PROTECTED]> wrote: > > Greetings. When I execute the SQL script below in > > mySQL 4.1, I get > > > > ERROR 1216: Cannot add or update a child row: a > > foreign key constraint fails > > > > It is, of course, choking on the enroll row > insert. > > Why is this happening? Here are some things that > make > > the problem go away: > > > > 1. Take out the "name VARCHAR(30)" attribute from > > student OR change the type to CHAR(30): In > Section > > 6.5.3.1 (second bullet), it says that if one > attribute > > is variable length, all attributes "silently" > become > > variable length. Does this mean student.sid is > really > > a VARCHAR? Could this be related to the problem? > > > > 2. Change type of enroll.sid to VARCHAR(5). > > > > 3. Change "Earl" to "Early" > > > > My theory: student.sid get "silently changed" > from > > CHAR to VARCHAR since student.name is VARCHAR; > > however, enroll.sid does not change because there > are > > no variable length fields in enroll. This means > that > > > > enroll.sid = "Earl " > > student.sid = "Earl" > > > > Consequently, there is no match. > > > > Note that I did try specifying a length for the > index > > on sid (i.e., "INDEX sidindex (sid(5)),") but that > > didn't help. Even shortening to 4 doesn't help, > which > > doesn't jive with my cohersion theory, assuming I > > understand the index length specification. > > > > I tested your example and it worked fine for me. I > didn't get any error. > What is value of default-character-set? > > > -- > For technical support contracts, goto > https://order.mysql.com/?ref=ensita > This email is sponsored by Ensita.net > http://www.ensita.net/ > __ ___ ___ ____ __ > / |/ /_ __/ __/ __ \/ / Victoria Reznichenko > / /|_/ / // /\ \/ /_/ / /__ > [EMAIL PROTECTED] > /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net > <___/ www.mysql.com > > > > > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: > http://lists.mysql.com/[EMAIL PROTECTED] > __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
