Catalog of PostgreSQL queries for finding information about a PostgreSQL database and its design problems

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There are 996 queries.

Seq nrNameGoalTypeData sourceLast updateLicense...
481Name does not contain any vowelsFind names of database objects that do not contain any vowels.Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 17:19MIT License
482Name does not contain any vowels (aggregate view)Find aggregate information about the names of database objects that do not contain any vowels.Sofware measureINFORMATION_SCHEMA+system catalog base tables2024-12-21 17:19MIT License
483Names of character classes are not in the lowercaseFind regular expressions where the names of character classes are not completely in lowercase. For instance, incorrect is to write [[:UPPER:]] or [[:Upper:]] and correct is [[:upper:]].Problem detectionINFORMATION_SCHEMA+system catalog base tables2021-11-04 13:22MIT License
484Names of columns with the type BOOLEANThe naming of BOOLEAN columns must be consistent. For the better readability the names of such columns could have prefix "is_" (in English) or "on_" (in Estonian)GeneralINFORMATION_SCHEMA+system catalog base tables2024-01-03 09:41MIT License
485Names of database objects (regular identifiers) that contain $Find names (identifiers) of user-defined database objects that are regular identifiers and contain the $ sign starting from the second position. "Note that dollar signs are not allowed in identifiers according to the letter of the SQL standard, so their use might render applications less portable." (PostgreSQL manual)Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 16:46MIT License
486Names of database objects that are fully uppercaseFull uppercase means screaming and it makes comprehending the names more difficult. Find the names (identifiers) of user-defined database objects that are fully uppercase. Because PostgreSQL stores regular identifiers lowercase in the system catalog it also means that these are delimited identifiers, i.e., these are case sensitive.Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 17:27MIT License
487Names of database objects that are used to manage the state of main objects in the database"Names in software are 90 percent of what make software readable. You need to take the time to choose them wisely and keep them relevant. Names are too important to treat carelessly. Names should not cause confusion." (Robert C. Martin, Clean Code) The naming must be consistent. One should avoid mixing synonyms like "seisund", "staatus", and "olek" in Estonian or "state" and "status" in English and stick with one term.GeneralINFORMATION_SCHEMA+system catalog base tables2024-12-21 17:23MIT License
488Names of database objects that contain a digitFind the names (identifiers) of user-defined database objects that contain at least one digit. Names should be informative. Duplicates should be avoided. Digits in names are a possible sign of duplication of database objects or unclear names.GeneralINFORMATION_SCHEMA+system catalog base tables2024-12-21 16:45MIT License
489Names of database objects that contain dollar signFind names of database objects that contain a dollar sign ($) that is not the first symbol of the name. In PostgreSQL regular identifiers cannot start with $. However, $ can be used in other positions of the name. "Note that dollar signs are not allowed in identifiers according to the letter of the SQL standard, so their use might render applications less portable." (PostgreSQL documentation)Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 16:43MIT License
490Names of database objects that contain two or more consecutive underscores or spaces as separators of name componentsImprove the readability of names. Find the names (identifiers) of user-defined database objects that contain two or more consecutive underscores or spaces that separate name components, i.e., these are not at the beginning and in the end of the name. Example of such names are person__id or "person id". Names with duplicate underscores use snake case style but duplication of underscores does not improve the usability of the name.Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 17:22MIT License
491Names of database objects that end with an underscoreFind names of database objects that end with a underscore.Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 16:42MIT License
492Names of database objects that mix snake_case and camelCase/PascalCaseUse consistent style of naming. Prefer snake_case. Regular identifiers are stored in the PostgreSQL system catalog in lowercase. Thus, if you use, for instance the identifier thisIsLongTableName, then, for instance,in the pg_dump result you will see the table name thisislongtablename. If the name in the system catalog is thisIsLongTableName, then it means that the name is a delimited identifier, i.e., case sensitive.Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 16:35MIT License
493Names of database objects that perhaps end with a sequence numberFind the names (identifiers) of user-defined database objects that end with one or more digit. Names should be informative. Duplicates should be avoided. Digits in names are a possible sign of duplication of database objects or unclear names.Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 16:33MIT License
494Names of database objects that perhaps end with a sequence number (aggregate view)Find the number of names (identifiers) of user-defined database objects that end with one or more digit. Names should be informative. Duplicates should be avoided. Digits in names are a possible sign of duplication of database objects or unclear names.Sofware measureINFORMATION_SCHEMA+system catalog base tables2024-12-21 16:33MIT License
495Names of database objects that start with an underscoreImprove the readability of names. Find the names (identifiers) of user-defined database objects that start with an underscore. This is not necessarily a mistake. For instance, parameter names could start with an underscore. On the other hand, it could be that the prefix is missing in the name.GeneralINFORMATION_SCHEMA+system catalog base tables2024-12-21 17:23MIT License
496Names of database objects with four or more consecutive identical symbolsFind names of database objects with four or more consecutive identical symbolsProblem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 17:27MIT License
497Names of database objects with perhaps too many digitsFind the names of database objects where more than half the signs are digits.Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 17:20MIT License
498Names of database objects with perhaps too many subcomponents (terms)"Names in software are 90 percent of what make software readable. You need to take the time to choose them wisely and keep them relevant. Names are too important to treat carelessly. Names should not cause confusion." (Robert C. Martin, Clean Code) The number of subcomponents (terms) should not be too big. Find the names (identifiers) of user-defined database objects that perhaps contain too many subcomponents, assuming, that the separator of the components is "_".Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 16:44MIT License
499Names of database objects with perhaps too many subcomponents (terms) that consist of only consonantsFind names of database objects where the number of subcomponents (terms) that consist of only consonants is bigger than the number of subcomponents that contain at least one vowel.Problem detectionINFORMATION_SCHEMA+system catalog base tables2024-12-21 17:18MIT License
500Names of the columns of derived tables that have been given by the systemFind columns of derived tables that name has been given by the system. The creators of the table should specify the name themselves to avoid ugly names and nasty surprises.Problem detectionINFORMATION_SCHEMA+system catalog base tables2022-11-15 16:48MIT License