Hur man listar alla lagrade procedurer i MariaDB

I MariaDB kan vi använda SHOW PROCEDURE STATUS kommando för att returnera en lista över lagrade procedurer.

Vi kan också fråga information_schema.routines tabell för att göra samma sak.

SHOW PROCEDURE STATUS Kommando

Det enklaste sättet att lista ut alla lagrade procedurer är att använda SHOW PROCEDURE STATUS kommando.

Kör helt enkelt följande för att lista alla lagrade procedurer:

SHOW PROCEDURE STATUS;

Syntaxen ser ut så här:

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

Så du kan använda en LIKE sats eller WHERE klausul för att begränsa resultaten.

Exempel:

SHOW PROCEDURE STATUS LIKE 'film%';

Resultat:

+--------+-------------------+-----------+------------------+---------------------+---------------------+---------------+---------+----------------------+----------------------+--------------------+
| Db     | Name              | Type      | Definer          | Modified            | Created             | Security_type | Comment | character_set_client | collation_connection | Database Collation |
+--------+-------------------+-----------+------------------+---------------------+---------------------+---------------+---------+----------------------+----------------------+--------------------+
| sakila | film_in_stock     | PROCEDURE | [email protected] | 2021-11-13 07:26:47 | 2021-11-13 07:26:47 | DEFINER       |         | utf8mb4              | utf8mb4_general_ci   | utf8mb4_general_ci |
| sakila | film_not_in_stock | PROCEDURE | [email protected] | 2021-11-13 07:26:47 | 2021-11-13 07:26:47 | DEFINER       |         | utf8mb4              | utf8mb4_general_ci   | utf8mb4_general_ci |
+--------+-------------------+-----------+------------------+---------------------+---------------------+---------------+---------+----------------------+----------------------+--------------------+

information_schema.routines Tabell

Ett annat sätt att få en lista över lagrade procedurer är att fråga information_schema.routines bord.

Exempel:

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

Resultat:

+----------+--------------------+
| Database | routine_name       |
+----------+--------------------+
| mysql    | AddGeometryColumn  |
| mysql    | DropGeometryColumn |
| pethouse | spGetAllPets       |
| pethouse | spGetPetById       |
| sakila   | film_in_stock      |
| sakila   | film_not_in_stock  |
| sakila   | rewards_report     |
+----------+--------------------+

Den här tabellen lagrar även information om lagrade funktioner. I exemplet ovan uteslöt jag dessa genom att använda en WHERE sats för att endast returnera lagrade procedurer (d.v.s. objekt med en routine_type av PROCEDURE ).

För att inkludera lagrade funktioner kan vi ta bort WHERE klausul:

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

Resultat:

+----------+----------------------------+--------------+
| Database | routine_name               | routine_type |
+----------+----------------------------+--------------+
| mysql    | AddGeometryColumn          | PROCEDURE    |
| mysql    | DropGeometryColumn         | PROCEDURE    |
| pethouse | spGetAllPets               | PROCEDURE    |
| pethouse | spGetPetById               | PROCEDURE    |
| sakila   | film_in_stock              | PROCEDURE    |
| sakila   | film_not_in_stock          | PROCEDURE    |
| sakila   | get_customer_balance       | FUNCTION     |
| sakila   | inventory_held_by_customer | FUNCTION     |
| sakila   | inventory_in_stock         | FUNCTION     |
| sakila   | rewards_report             | PROCEDURE    |
+----------+----------------------------+--------------+

I det här fallet lade jag också till routine_type kolumn så att vi kan skilja mellan procedurerna och funktionerna.

Vi kan också exkludera vissa databaser från resultatet om vi vill:

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;

Resultat:

+----------+----------------------------+--------------+
| Database | routine_name               | routine_type |
+----------+----------------------------+--------------+
| pethouse | spGetAllPets               | PROCEDURE    |
| pethouse | spGetPetById               | PROCEDURE    |
| sakila   | film_in_stock              | PROCEDURE    |
| sakila   | film_not_in_stock          | PROCEDURE    |
| sakila   | get_customer_balance       | FUNCTION     |
| sakila   | inventory_held_by_customer | FUNCTION     |
| sakila   | inventory_in_stock         | FUNCTION     |
| sakila   | rewards_report             | PROCEDURE    |
+----------+----------------------------+--------------+

Eller så kan vi begränsa det till en given databas:

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

Resultat:

+----------+--------------+--------------+
| Database | routine_name | routine_type |
+----------+--------------+--------------+
| pethouse | spGetAllPets | PROCEDURE    |
| pethouse | spGetPetById | PROCEDURE    |
+----------+--------------+--------------+