Table testsql_comments.issues Generated by
Primary key columns
Columns with indexes
Implied relationships
Excluded column relationships
< n > number of related tables
Column Type Size Nulls Auto Default Children Parents Comments
borrowernumber int 10  √  null
borrowers.borrowernumber issues_ibfk_1 R
foreign key, linking this to the borrowers table for the patron this item was checked out to
itemnumber int 10  √  null
items.itemnumber issues_ibfk_2 R
foreign key, linking this to the items table for the item that was checked out
date_due datetime 19  √  null datetime the item is due (yyyy-mm-dd hh:mm::ss)
branchcode varchar 10  √  null
branches.branchcode Implied Constraint R
foreign key, linking to the branches table for the location the item was checked out
issuingbranch varchar 18  √  null
returndate datetime 19  √  null date the item was returned, will be NULL until moved to old_issues
lastreneweddate datetime 19  √  null date the item was last renewed
return varchar 4  √  null
renewals tinyint 3  √  null lists the number of times the item was renewed
auto_renew bit 0  √  0 automatic renewal
timestamp timestamp 19 CURRENT_TIMESTAMP the date and time this record was last touched
issuedate datetime 19  √  null date the item was checked out or issued
onsite_checkout int 10 0 in house use flag

Table contained 0 rows at Tue Dec 27 18:01 NZDT 2016

Column(s) Type Sort Constraint Name
borrowernumber + timestamp Performance Asc/Asc bordate
branchcode Performance Asc branchcode_idx
borrowernumber Performance Asc issuesborridx
issuingbranch Performance Asc issuingbranch_idx
itemnumber Performance Asc itemnumber_idx

Close relationships  within of separation: