| 661 | Perhaps an overcomplicated constraint expression that compares the result of a Boolean expression with a Boolean value | Find table and domain CHECK constraints that compare the result of a Boolean expression with a Boolean value. If you can choose between two logically equivalent Boolean expressions choose the more simple expression. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2023-12-30 11:57 | MIT License | |
| 662 | CHECK constraints are inconsistent with DEFAULT values | Find table CHECK constraints that involve two columns that have the same default value. However the constraint assumes that the values must be unequal or one value must be bigger than another. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2024-11-30 09:58 | MIT License | |
| 663 | Permitting in a column only empty strings and strings that consist of whitespace characters | Find table CHECK constraints that permit in a column only empty strings or strings that consist of only whitespace characters. | Problem detection | INFORMATION_SCHEMA only | 2021-12-19 15:10 | MIT License | |
| 664 | Perhaps an unnecessary default value (the empty string or a string that consists of only whitespace) of a base table column/domain | Find table columns and domains with the default value that is the empty string or a string that consists of only whitespace (for instance, newlines, spaces). | Problem detection | INFORMATION_SCHEMA only | 2021-03-20 11:42 | MIT License | |
| 665 | CHAR or VARCHAR columns have a default value that length is longer from the character maximum length of the column | Find table columns with CHAR or VARCHAR type that have a default value that length is longer from the character maximum length of the column. Choose a suitable data type, field size, and default value. If the value is longer, then it is impossible to register it in a field, i.e., it makes registration of data impossible (except if the excessive characters are spaces). | Problem detection | INFORMATION_SCHEMA only | 2022-10-31 10:19 | MIT License | |
| 666 | Inconsistency between the type and the default value of a column (date and timestamp values) | Find table columns with timestamp/date types that data type and dynamically found default value have a different type. | Problem detection | INFORMATION_SCHEMA only | 2021-02-25 17:29 | MIT License | |
| 667 | Inconsistency between the type and the default value of a column (time values) | Find table columns with time types, which data type and dynamically found default value have a different type. | Problem detection | INFORMATION_SCHEMA only | 2021-02-25 17:29 | MIT License | |
| 668 | Too generic names (table constraints) | Find table constraints (constraints that are associated directly with the table) that have too generic names like "key" or the name contain too generic words like "data" (all constraints restrict data in the table), or the name is an abbreviation of a constraint type name. | Problem detection | system catalog base tables only | 2023-01-08 10:40 | MIT License | |
| 669 | A non-parameterized table function instead of a view | Find table functions that do not have any parameters. Prefer simpler and more portable solutions. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-11-03 21:16 | MIT License | |
| 670 | Table functions with OFFSET | Find table functions that use OFFSET. OFFSET method is a common way for implementing pagination. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2023-11-09 12:13 | MIT License | |
| 671 | A table has the same name as a routine | Find table names that are the same as some routine name. Use different names to avoid confusion. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-02-25 17:30 | MIT License | |
| 672 | Grantable table privileges | Find table privileges that the carrier of the privilege can in turn grant to others, i.e., the privileges have been given WITH GRANT OPTION. The number of privileges that can be passed on should be as small as possible. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2024-01-07 13:43 | MIT License | |
| 673 | Table, routine, and usage privileges that have been granted to a superuser | Find table, routine, and usage privileges that have been granted to a superuser. Superuser can do anything in the database and thus does not need the privileges. The result is a sign that perhaps the executed GRANT statements were incorrect (wrong username) or the grantee later got superuser status (that it shouldn't have). | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-02-25 17:30 | MIT License | |
| 674 | One true lookup table | Find tables that contain all (or most) of the classifier values and tables that refer to these. | Problem detection | system catalog base tables only | 2021-02-25 17:29 | MIT License | |
| 675 | Table has both state and status columns | Find tables that contain both a state and a status column. | General | INFORMATION_SCHEMA+system catalog base tables | 2023-01-14 15:26 | MIT License | |
| 676 | Table has multiple columns for free-form descriptions | Find tables that contain multiple columns for free-form textual descriptions. Make sure that the names of columns are understandable and sufficiently different. Make sure that there are no duplicate columns. | General | INFORMATION_SCHEMA+system catalog base tables | 2023-01-14 15:36 | MIT License | |
| 677 | Small tables | Find tables that have one column or zero columns. | General | INFORMATION_SCHEMA+system catalog base tables | 2021-03-07 10:52 | MIT License | |
| 678 | Name and description maximum length | Find tables where is both a column for registering name and description. Find the permitted maximum field size in these columns. Take into account that the maximum length may be controlled by using a CHECK constraint. Make sure that the permitted maximum field sizes are sufficiently different. | General | INFORMATION_SCHEMA+system catalog base tables | 2021-02-24 20:36 | MIT License | |
| 679 | Trigger is used to enforce referential integrity | Find tables where user-defined (non-system) triggers are used to implement referential integrity. In addition to table name show the triggers and the number of triggers. | Problem detection | INFORMATION_SCHEMA+system catalog base tables | 2021-02-25 17:30 | MIT License | |
| 680 | Tables with the same name in different schemas | Find tables with the same name in different schemas. Make sure that this is not a duplication. | General | INFORMATION_SCHEMA+system catalog base tables | 2021-11-10 15:40 | MIT License | |