2 måder at liste alle lagrede procedurer i MySQL

Nedenfor er to muligheder for at returnere en komplet liste over lagrede procedurer i MySQL.

SHOW PROCEDURE STATUS Kommando

Den hurtigste måde at få vist alle lagrede procedurer på er at bruge SHOW PROCEDURE STATUS kommando.

Kør blot følgende for at få en liste over alle lagrede procedurer:

SHOW PROCEDURE STATUS;

Syntaksen ser sådan ud:

SHOW PROCEDURE STATUS
    [LIKE 'pattern' | WHERE expr]

Så du kan bruge en LIKE eller WHERE klausul for at indsnævre resultaterne.

Eksempel:

SHOW PROCEDURE STATUS LIKE 'albums%';

Resultat:

+-------+------------------------+-----------+----------------+---------------------+---------------------+---------------+---------+----------------------+----------------------+--------------------+
| Db    | Name                   | Type      | Definer        | Modified            | Created             | Security_type | Comment | character_set_client | collation_connection | Database Collation |
+-------+------------------------+-----------+----------------+---------------------+---------------------+---------------+---------+----------------------+----------------------+--------------------+
| Music | spAlbumsByGenre        | PROCEDURE | example@sqldat.com | 2021-11-13 13:09:26 | 2021-11-13 13:09:26 | DEFINER       |         | utf8mb4              | utf8mb4_0900_ai_ci   | utf8mb4_0900_ai_ci |
| Music | spAlbumsFromArtistId   | PROCEDURE | example@sqldat.com | 2021-11-13 13:03:25 | 2021-11-13 13:03:25 | DEFINER       |         | utf8mb4              | utf8mb4_0900_ai_ci   | utf8mb4_0900_ai_ci |
| Music | spAlbumsFromArtistName | PROCEDURE | example@sqldat.com | 2021-11-13 13:03:48 | 2021-11-13 13:03:48 | DEFINER       |         | utf8mb4              | utf8mb4_0900_ai_ci   | utf8mb4_0900_ai_ci |
+-------+------------------------+-----------+----------------+---------------------+---------------------+---------------+---------+----------------------+----------------------+--------------------+

information_schema.routines Tabel

En anden måde at få en liste over lagrede procedurer i MySQL på er at forespørge information_schema.routines tabel.

Eksempel:

SELECT 
    routine_schema as "Database",
    routine_name
FROM 
    information_schema.routines
WHERE 
    routine_type = 'PROCEDURE'
ORDER BY 
    routine_schema ASC, 
    routine_name ASC;

Denne tabel gemmer også oplysninger om lagrede funktioner. I ovenstående eksempel ekskluderede jeg dem ved at bruge en WHERE klausul for kun at returnere lagrede procedurer (dvs. objekter med en routine_type af PROCEDURE ).

For at inkludere lagrede funktioner kan vi fjerne WHERE klausul:

SELECT 
    routine_schema as "Database",
    routine_name,
    routine_type
FROM 
    information_schema.routines
ORDER BY 
    routine_schema ASC, 
    routine_name ASC;

I dette tilfælde tilføjede jeg også routine_type kolonne, så vi kan skelne mellem procedurerne og funktionerne.

Vi kan også udelukke visse databaser fra resultatet:

SELECT 
    routine_schema as "Database",
    routine_name,
    routine_type
FROM 
    information_schema.routines
WHERE 
    routine_schema NOT IN ('sys', 'information_schema', 'mysql', 'performance_schema')
ORDER BY 
    routine_schema ASC, 
    routine_name ASC;

Her er, hvad dette returnerer i mit testmiljø:

+----------+------------------------+--------------+
| Database | ROUTINE_NAME           | ROUTINE_TYPE |
+----------+------------------------+--------------+
| Music    | spAlbumsByGenre        | PROCEDURE    |
| Music    | spAlbumsFromArtistId   | PROCEDURE    |
| Music    | spAlbumsFromArtistName | PROCEDURE    |
| Music    | spArtistFromId         | PROCEDURE    |
| PetHotel | spGetAllPets           | PROCEDURE    |
| PetHotel | spGetPetById           | PROCEDURE    |
+----------+------------------------+--------------+

Vi kan også indsnævre det til en bestemt database:

SELECT 
    routine_schema as "Database",
    routine_name,
    routine_type
FROM 
    information_schema.routines
WHERE 
    routine_schema = 'music'
ORDER BY 
    routine_name ASC;

Resultat:

+----------+------------------------+--------------+
| Database | ROUTINE_NAME           | ROUTINE_TYPE |
+----------+------------------------+--------------+
| Music    | spAlbumsByGenre        | PROCEDURE    |
| Music    | spAlbumsFromArtistId   | PROCEDURE    |
| Music    | spAlbumsFromArtistName | PROCEDURE    |
| Music    | spArtistFromId         | PROCEDURE    |
+----------+------------------------+--------------+