SQL::IndexColumnInfo Object
Description
SQL::IndexColumnInfo Object properties and methods
A SQL index contains one or more columns. as a result, a SQL::IndexInfo object contains one or more SQL::IndexColumnInfo objects, each of which describes one of the column(s) that make up the primary key, the foreign key, of a unique or non-unique index.
dim conn as SQL::Connection
dim ti as SQL::TableInfo
dim ii as SQL::IndexInfo
dim ic1 as SQL::IndexColumnInfo
connString = "{A5API='Access', FileName='c:\program files\a5v8\mdbfiles\alphasports.mdb'}"
if .not. conn.open(connString) then
ui_msg_box("Error", conn.CallResult.text)
end
end if
ic1.name = "lastname"
ii.AddColumn(ic1)
ii.unique = .f.
ti.name = "customer"
ui_msg_box("Index Column Definition", ic1.XML)Properties
- XMLCharacter
The schema in XML format.
- NameCharacter
Default = "". The unique name of the column to be indexed within the table.
- ReferenceNameCharacter
Default = "".
- AscendingLogical
Default = FALSE (.F.) True (.T.) = column is in ascending order. False (.F.) = the column is in descending order.
- NullAllowedLogical
Default = FALSE (.F.). True (.T.) = the column can be included in the index even if it is NULL. False (.F.) = the column may not be included in the index if it is NULL.
Methods
- Clone Method
The Clone() method makes a copy of the SQL::IndexColumnInfo object (an object instance) and its properties.
See Also