PostgresDB 02000: No Data

What is PostgresDB 02000: No Data

Check if the query is correct and targeting the right table and database. Run a simple query to confirm the table has data:SELECT * FROM your_table_name LIMIT 5;Verify the connection to the database is correctly established:SELECT 1;Check if the table you are querying is empty:SELECT COUNT(*) FROM your_table_name;Examine PostgreSQL logs for any errors or warnings that might indicate the cause. The location of these logs varies but can often be found in /var/log/postgresql/ or by checking the log_directory setting:tail -f /var/log/postgresql/postgresql-XX-main.logReplace XX with your PostgreSQL version.If you suspect the issue might be with transaction isolation or locks preventing data from being visible, check for any active locks:SELECT * FROM pg_locks plJOIN pg_class pc ON pl.relation = pc.oidJOIN pg_database pd ON pl.database = pd.oidWHERE pd.datname = 'your_database_name';Ensure that your query does not have filters or conditions that are too restrictive or incorrect, potentially leading to zero results. Double-check the WHERE clause conditions.If working with a replication setup, ensure the data has been replicated to the database you are querying from. Check replication status:SELECT * FROM pg_stat_replication;For partitioned tables, ensure that the query covers the correct partitions or that the table has data in the partitions being queried. Check partitions for data:SELECT inhrelid::regclass AS partition_name, n_live_tup FROM pg_inheritsJOIN pg_stat_user_tables ON inhrelid = relidWHERE inhparent = 'your_parent_table'::regclass;If using a role with row-level security policies, ensure that your role has the appropriate permissions to see the data. Check if RLS is enabled and what policies are in place:SELECT * FROM pg_policies WHERE tablename = 'your_table_name';Finally, confirm that the database and table you are querying actually exist to avoid querying non-existent entities:SELECT * FROM pg_database WHERE datname = 'your_database_name';SELECT * FROM pg_tables WHERE tablename = 'your_table_name';