From 84888e0a8e305925a768813f116364b6973f8eec Mon Sep 17 00:00:00 2001 From: thescholars14 Date: Mon, 12 May 2025 11:35:11 +0500 Subject: [PATCH] Create get-oid-table-postgresql.sql --- .../get-oid-table-postgresql.sql | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 table-operations/get-oid-postgres-table/get-oid-table-postgresql.sql diff --git a/table-operations/get-oid-postgres-table/get-oid-table-postgresql.sql b/table-operations/get-oid-postgres-table/get-oid-table-postgresql.sql new file mode 100644 index 00000000..8bc79848 --- /dev/null +++ b/table-operations/get-oid-postgres-table/get-oid-table-postgresql.sql @@ -0,0 +1,24 @@ +--get oid using pg_class +SELECT oid, relname + FROM pg_class + WHERE relname = 'student'; + +--get oid using pg_catalog.pg_class with pg_catalog.pg_namespace +SELECT c.oid, n.nspname AS schema_name, c.relname AS table_name + FROM pg_catalog.pg_class c + JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace + WHERE c.relname = 'student' AND n.nspname = 'public'; + +--get oid using pg_table_is_visible() and pg_class +SELECT c.oid, c.relname AS table_name + FROM pg_class c + WHERE c.relname = 'student' AND pg_table_is_visible(c.oid); + +--get oid using regclass cast +SELECT 'public.student'::regclass::oid; + +--Listing OIDs of All Tables +SELECT c.oid, n.nspname AS schema_name, c.relname AS table_name + FROM pg_class c + JOIN pg_namespace n ON n.oid = c.relnamespace + WHERE c.relkind = 'r';