Table::existsInDatabase
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Table::existsInDatabase — Check if table exists in database
说明
Verifies if this table exists in the database.
参数
此函数没有参数。
返回值
Returns true if table exists in the database, else false if it does not.
示例
示例 #1 mysql_xdevapi\Table::existsInDatabase() example
<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");
$session->sql("DROP DATABASE IF EXISTS addressbook")->execute();
$session->sql("CREATE DATABASE addressbook")->execute();
$session->sql("CREATE TABLE addressbook.names(name text, age int)")->execute();
$session->sql("INSERT INTO addressbook.names values ('John', 42), ('Sam', 33)")->execute();
$schema = $session->getSchema("addressbook");
$table = $schema->getTable("names");
if ($table->existsInDatabase()) {
echo "Yes, this table still exists in the session's schema.";
}
?>以上示例的输出类似于：
Yes, this table still exists in the session's schema.
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