Goal Find base tables that name starts with a prefix. Do not use prefixes in case of base table names. Derive the names from the names of entity types. Do not use "_", "t_", "tab_", "t11_" etc as prefixes of a table.
Notes In case of finding prefixes the query assumes the use of snake case writing style and that the prefix is separated from the rest of the name by an underscore. The query returns false positive results if the table name starts with a short word (like dog or cat) that is not actually a prefix.
Type Problem detection (Each row in the result could represent a flaw in the design)
Reliability Medium (Medium number of false-positive results)
License MIT License
Fixing Suggestion Rename the table and remove the prefix.
Data Source INFORMATION_SCHEMA only
SQL Query
SELECT table_schema, table_name
FROM information_schema.tables
WHERE table_type='BASE TABLE' 
AND table_name~*'^(_|[[:alpha:]]_|(tb|tbl|tab|table|tabel)_|[[:alpha:]][[:digit:]]+_)'
AND table_schema NOT IN (SELECT schema_name
FROM INFORMATION_SCHEMA.schemata
WHERE schema_name<>'public' AND
schema_owner='postgres' AND schema_name IS NOT NULL)
ORDER BY table_schema, table_name;

Collections

This query belongs to the following collections:

NameDescription
Find problems about namesA selection of queries that return information about the names of database objects. Contains all the types of queries - problem detection, software measure, and general overview.
Find problems automaticallyQueries, that results point to problems in the database. Each query in the collection produces an initial assessment. However, a human reviewer has the final say as to whether there is a problem or not .
Categories

This query is classified under the following categories:

NameDescription
NamingQueries of this category provide information about the style of naming.

Further reading and related materials:

Reference
https://www.sqlstyle.guide/