How to check if a table exists in mysql database?

Question

MySQL

Komrades, advise the most efficient and correct way to check the existence of a table

$wpdb->prefix . termmeta

in Wordpress database. Is it worth writing a rake with an unfulfilled request, or is there some standard "ping" or Wordpress function that I don't know about ..
There is a function that creates a table in the database, which needs to be run once upon activation, but the user, in the end, can activate the plugin several times, but writing a function to delete a table when the plugin is deactivated is not right - all of a sudden, deactivation is not needed for subsequent deletion ..

Answer 1

$wpdb->get_var("tableName")
if ( $wpdb->get_var("show tables like '".$table."'") != $table ) {
Create table;
}

Answer 2

Is the table created with pure sql or wp wrapper?
If sql then you can immediately send
create table if not exist to the sql database without any checks