Prefixes of base table names

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 (opens in new tab)
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:

Find problems about names

A 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 automatically

Queries, 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 .

Name	Description
Find problems about names	A 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 automatically	Queries, 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:

Naming

Queries of this category provide information about the style of naming.

Name	Description
Naming	Queries of this category provide information about the style of naming.