Schema::existsInDatabase

(No version information available, might only be in Git)

Schema::existsInDatabaseCheck if exists in database

Descripción

public mysql_xdevapi\Schema::existsInDatabase(): bool

Checks if the current object (schema, table, collection, or view) exists in the schema object.

Parámetros

Esta función no tiene parámetros.

Valores devueltos

true if the schema, table, collection, or view still exists in the schema, else false.

Ejemplos

Ejemplo #1 mysql_xdevapi\Schema::existsInDatabase() example

<?php
$session
= mysql_xdevapi\getSession("mysqlx://user:password@localhost");

$session->sql("DROP DATABASE IF EXISTS food")->execute();
$session->sql("CREATE DATABASE food")->execute();
$session->sql("CREATE TABLE food.fruit(name text, rating text)")->execute();

$schema = $session->getSchema("food");
$schema->createCollection("trees");

// ...

$trees = $schema->getCollection("trees");

// ...

// Is this collection still in the database (schema)?
if ($trees->existsInDatabase()) {
echo
"Yes, the 'trees' collection is still present.";
}

El resultado del ejemplo sería algo similar a:

Yes, the 'trees' collection is still present.
add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top