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diff --git a/InterBase.pm b/InterBase.pm
index bdd041e..f615cad 100644
--- a/InterBase.pm
+++ b/InterBase.pm
@@ -210,6 +210,55 @@ sub table_info
return $sth;
}
+
+sub column_info
+{
+ my $dbh = shift;
+ my ($catalog,$schema,$table,$column) = (@_);
+ my (@search)=();
+ if(defined($table) && length($table)) {
+ push @search, "r.rdb\$relation_name ". ($table =~ /[_%]/ ? "LIKE " : "= ") .$dbh->quote($table);
+ }
+ if(defined($column) && length($column)) {
+ push @search, "rf.rdb\$field_name ". ($column =~ /[_%]/ ? "LIKE " : "= ") .$dbh->quote($column);
+ }
+ my $wherefilter = join ' AND ','',@search;
+ my $sql = qq!
+ SELECT
+ NULL TABLE_CAT,
+ r.rdb\$owner_name TABLE_SCHEM,
+ r.rdb\$relation_name TABLE_NAME,
+ rf.rdb\$field_name COLUMN_NAME,
+ t.rdb\$type_name DATA_TYPE,
+ t.rdb\$type_name TYPE_NAME,
+ f.rdb\$character_length COLUMN_SIZE,
+ f.rdb\$field_length BUFFER_LENGTH,
+ NULL DECIMAL_DIGITS,
+ NULL NUM_PREC_RADIX,
+ rf.rdb\$null_flag NULLABLE,
+ rf.rdb\$description REMARKS,
+ rf.rdb\$default_value COLUMN_DEF,
+ t.rdb\$type_name SQL_DATA_TYPE,
+ NULL SQL_DATETIME_SUB,
+ f.rdb\$field_length CHAR_OCTET_LENGTH,
+ rf.rdb\$field_position ORDINAL_POSITION,
+ rf.rdb\$null_flag IS_NULLABLE
+ FROM
+ rdb\$relations r
+ JOIN rdb\$relation_fields rf ON (r.rdb\$relation_name=rf.rdb\$relation_name)
+ JOIN rdb\$fields f ON (rf.rdb\$field_source=f.rdb\$field_name)
+ JOIN rdb\$types t ON (f.rdb\$field_type=t.rdb\$type)
+ WHERE
+ ((r.rdb\$system_flag=0) OR (r.rdb\$system_flag IS NULL)) AND (r.rdb\$view_source IS NULL)
+ $wherefilter
+ ORDER BY r.rdb\$owner_name, r.rdb\$relation_name, rf.rdb\$field_position
+ !;
+#print "[[$sql]]";
+ my $sth = $dbh->prepare($sql);
+ $sth->execute() or return undef;
+
+ return $sth;
+}
sub ping
{
|
