1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75

$mssql_db = DB::connection('mssql');

$local_database = config('database.connections.mariadb.database');

$local_tables = DB::connection('mariadb')
    ->table('information_schema.TABLES')
    ->where('TABLE_SCHEMA', $local_database)
    ->pluck('table_comment', 'table_name');

$local_columns = DB::connection('mariadb')
    ->table('information_schema.COLUMNS')
    ->select('table_name', 'column_name', 'column_comment')
    ->where('TABLE_SCHEMA', $local_database)
    ->get()
    ->groupBy('table_name');

foreach ($local_columns as $table_name => $table_columns) {
    try {
        $mssql_db->table($table_name)->exists();
    } catch (\Exception) {
        
        continue;
    }

    $table_comment = $local_tables[$table_name];

    $mssql_db->statement("IF ((SELECT COUNT(*) FROM ::fn_listextendedproperty('MS_Description',
'SCHEMA', 'dbo',
'TABLE', ?, NULL, NULL)) > 0)
EXEC sp_updateextendedproperty
'MS_Description', ?,
'SCHEMA', 'dbo',
'TABLE', ?
ELSE
EXEC sp_addextendedproperty
'MS_Description', ?,
'SCHEMA', 'dbo',
'TABLE', ?", [
        $table_name,
        $table_comment,
        $table_name,
        $table_comment,
        $table_name,
    ]);

    foreach ($table_columns as $column) {
        $column_name = $column->column_name;

        $column_comment = $column->column_comment;
        $mssql_db->statement("IF ((SELECT COUNT(*) FROM ::fn_listextendedproperty('MS_Description',
'SCHEMA', 'dbo',
'TABLE', ?,
'COLUMN', ?)) > 0)
EXEC sp_updateextendedproperty
'MS_Description', ?,
'SCHEMA', 'dbo',
'TABLE', ?,
'COLUMN', ?
ELSE
EXEC sp_addextendedproperty
'MS_Description', ?,
'SCHEMA', 'dbo',
'TABLE', ?,
'COLUMN', ?", [
            $table_name,
            $column_name,
            $column_comment,
            $table_name,
            $column_name,
            $column_comment,
            $table_name,
            $column_name,
        ]);
    }
}