check if mysql database exists

bash-mysql_has-database.sh

hasDatabase() {
    DB_NAME=$1;
    return $(MYSQL_PWD="${MYSQL_ROOT_PASSWORD}" mysql -u${DB_USER} --skip-column-names --batch -e "SHOW DATABASES LIKE '${DB_NAME}'" | wc -l)
}

checkIfMySQLTableExists() {
    table=$1;
    if [ $(mysql -N -s -u root -p -e \
        "select count(*) from information_schema.tables where \
            table_schema='${table}' and table_name='${DB}';") -eq 1 ]; then
        echo "Table ${table} exists! ...";
    else
        echo "Table ${table} does not exist! ..."
        exit 1
    fi

}