tech/snippets - Category - FH Jurnal

Postgresql Vacuum

fhpermadi — Thu, 30 Nov 2023 19:50:04 +0700

When is VACUUM needed 1 2 3 4 5 6 7 8 9 10 SELECT relname AS table_name, n_live_tup, n_dead_tup, last_vacuum, last_autovacuum FROM pg_stat_user_tables WHERE n_dead_tup > (n_live_tup * 0.2); -- Using 20% as the threshold In this query: relname is the name of the table. n_live_tup is the number of live tuples (rows) in the table. n_dead_tup is the number of dead tuples in the table. last_vacuum shows when the last manual VACUUM was performed on the table.

Golang Mongo

fhpermadi — Thu, 30 Nov 2023 18:25:14 +0700

Handle MongoDB Collection intermitten between String and Embedded Document 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 func (a *Address) UnmarshalBSONValue(t bsontype.Type, data []byte) error { if s, _, ok := bsoncore.ReadString(data); ok { a.Address = s return nil } if t != bson.TypeEmbeddedDocument { return fmt.Errorf("expected embedded document, got BSON type: %v", t) } var doc bson.

Oracle Operations

fhpermadi — Sun, 09 Jul 2023 20:19:30 +0700

Discover what the issue in oracle day to day operations

SQL Server: Create/Drop Scripts for existing FK

fhpermadi — Sun, 09 Jul 2023 18:47:42 +0700

Create FK 1 2 3 4 5 6 7 8 9 10 SELECT 'ALTER TABLE ' + SCHEMA_NAME(F.schema_id) + '.' + OBJECT_NAME(F.parent_object_id) + ' ADD CONSTRAINT ' + F.name + ' FOREIGN KEY ' + '(' + COL_NAME(FC.parent_object_id, FC.parent_column_id) + ')' + ' REFERENCES ' + SCHEMA_NAME(RefObj.schema_id) + '.' + OBJECT_NAME(F.referenced_object_id) + ' (' + COL_NAME(FC.referenced_object_id, FC.referenced_column_id) + ')' FROM SYS.FOREIGN_KEYS AS F INNER JOIN SYS.FOREIGN_KEY_COLUMNS AS FC ON F.OBJECT_ID = FC.