امتداد:سمات_تجريبية/جدول عد المستخدمين في betafeatures
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الخانات
feature
مفتاح رئيسي.
number
...
تصميم البيانات
mysql> describe betafeatures_user_counts; +---------+----------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +---------+----------------+------+-----+---------+-------+ | feature | varbinary(255) | NO | PRI | NULL | | | number | int(11) | NO | | 0 | | +---------+----------------+------+-----+---------+-------+
الفهارس
+--------------------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | +--------------------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | betafeatures_user_counts | 0 | PRIMARY | 1 | feature | A | 0 | NULL | NULL | | BTREE | | | +--------------------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+