PHP8 cubrid_schema
(PECL CUBRID >= 8.3.0)
cubrid_schema — 获取请求的架构信息
说明
cubrid_schema(
resource $conn_identifier,
int $schema_type,
string $class_name = ?,
string $attr_name = ?
): arraycubrid_schema() 函数用于获取 从数据库请求的架构信息。要获取有关特定类的信息, 设置 ,以获取有关特定属性的信息 (只能与CUBRID_SCH_ATTR_PRIVILEGE一起使用), 将 .class_nameattr_name
cubrid_schema() 函数的结果以二维形式返回 数组 (列 (关联数组) * 行 (数值数组))。以下 表显示了 Schema 的类型和结果数组的列结构 根据架构类型返回。
| 图式 | 列号 | 列名称 | 价值 |
|---|---|---|---|
| CUBRID_SCH_CLASS | 1 | 名字 | |
| 2 | 类型 | 0:系统类 1:v类 2:类 | |
| CUBRID_SCH_VCLASS | 1 | 名字 | |
| 2 | 类型 | 1:vclass | |
| CUBRID_SCH_QUERY_SPEC | 1 | QUERY_SPEC | |
| CUBRID_SCH_ATTRIBUTE / CUBRID_SCH_CLASS_ATTRIBUTE | 1 | ATTR_NAME | |
| 2 | 域 | ||
| 3 | 规模 | ||
| 4 | 精度 | ||
| 5 | 索引 | 1:索引 | |
| 6 | 不为空 | 1:不为空 | |
| 7 | 共享 | 1:共享 | |
| 8 | 独特 | 1:独一无二 | |
| 9 | 违约 | ||
| 10 | ATTR_ORDER | 底座:1 | |
| 11 | CLASS_NAME | ||
| 12 | SOURCE_CLASS | ||
| 13 | IS_KEY | 1:键 | |
| CUBRID_SCH_METHOD / CUBRID_SCH_CLASS_METHOD | 1 | 名字 | |
| 2 | RET_DOMAIN | ||
| 3 | ARG_DOMAIN | ||
| CUBRID_SCH_METHOD_FILE | 1 | METHOD_FILE | |
| CUBRID_SCH_SUPERCLASS / CUBRID_SCH_DIRECT_SUPER_CLASS / CUBRID_SCH_SUBCLASS | 1 | CLASS_NAME | |
| 2 | 类型 | 0:系统类 1:v类 2:类 | |
| CUBRID_SCH_CONSTRAINT | 1 | 类型 | 0:唯一 1:索引 2:反向 唯一 3:反向索引 |
| 2 | 名字 | ||
| 3 | ATTR_NAME | ||
| 4 | NUM_PAGES | ||
| 5 | NUM_KEYS | ||
| 6 | PRIMARY_KEY | 1:主键 | |
| 7 | KEY_ORDER | 底座:1 | |
| CUBRID_SCH_TRIGGER | 1 | 名字 | |
| 2 | 地位 | ||
| 3 | 事件 | ||
| 4 | TARGET_CLASS | ||
| 5 | TARGET_ATTR | ||
| 6 | ACTION_TIME | ||
| 7 | 行动 | ||
| 8 | 优先权 | ||
| 9 | CONDITION_TIME | ||
| 10 | 条件 | ||
| CUBRID_SCH_CLASS_PRIVILEGE / CUBRID_SCH_ATTR_PRIVILEGE | 1 | CLASS_NAME / ATTR_NAME | |
| 2 | 特权 | ||
| 3 | 可授予 | ||
| CUBRID_SCH_PRIMARY_KEY | 1 | CLASS_NAME | |
| 2 | ATTR_NAME | ||
| 3 | KEY_SEQ | 底座:1 | |
| 4 | KEY_NAME | ||
| CUBRID_SCH_IMPORTED_KEYS / CUBRID_SCH_EXPORTED_KEYS / CUBRID_SCH_CROSS_REFERENCE | 1 | PKTABLE_NAME | |
| 2 | PKCOLUMN_NAME | ||
| 3 | FKTABLE_NAME | 底座:1 | |
| 4 | Fcall_Name | ||
| 5 | KEY_SEQ | 底座:1 | |
| 6 | UPDATE_ACTION | 0:级联 1:限制 2:无操作 3:设置空 | |
| 7 | DELETE_ACTION | 0:级联 1:限制 2:无操作 3:设置空 | |
| 8 | FK_NAME | ||
| 9 | PK_NAME |
参数
conn_identifier连接标识符。
schema_type您想知道的架构数据。
class_name您想知道其架构的类。
attr_name要知道其架构的属性。
返回值
包含架构信息的数组, 当进程成功时, 或者在失败时返回 false.
更新日志
| 版本 | 说明 |
|---|---|
| 8.3.1 | 更改返回值:进程不成功时,返回 false,而不是 -1。 |
示例
示例 #1 cubrid_schema() example
<?php
$conn = cubrid_connect("localhost", 33000, "demodb", "dba");
printf("\n--- Primary Key ---\n");
$pk = cubrid_schema($conn, CUBRID_SCH_PRIMARY_KEY, "game");
var_dump($pk);
printf("\n--- Foreign Keys ---\n");
$fk = cubrid_schema($conn, CUBRID_SCH_IMPORTED_KEYS, "game");
var_dump($fk);
printf("\n--- Column Attribute ---\n");
$attr = cubrid_schema($conn, CUBRID_SCH_ATTRIBUTE, "stadium", "area");
var_dump($attr);
cubrid_disconnect($conn);
?>以上示例会输出:
--- Primary Key ---
array(3) {
[0]=>
array(4) {
["CLASS_NAME"]=>
string(4) "game"
["ATTR_NAME"]=>
string(12) "athlete_code"
["KEY_SEQ"]=>
string(1) "3"
["KEY_NAME"]=>
string(41) "pk_game_host_year_event_code_athlete_code"
}
[1]=>
array(4) {
["CLASS_NAME"]=>
string(4) "game"
["ATTR_NAME"]=>
string(10) "event_code"
["KEY_SEQ"]=>
string(1) "2"
["KEY_NAME"]=>
string(41) "pk_game_host_year_event_code_athlete_code"
}
[2]=>
array(4) {
["CLASS_NAME"]=>
string(4) "game"
["ATTR_NAME"]=>
string(9) "host_year"
["KEY_SEQ"]=>
string(1) "1"
["KEY_NAME"]=>
string(41) "pk_game_host_year_event_code_athlete_code"
}
}
--- Foreign Keys ---
array(2) {
[0]=>
array(9) {
["PKTABLE_NAME"]=>
string(7) "athlete"
["PKCOLUMN_NAME"]=>
string(4) "code"
["FKTABLE_NAME"]=>
string(4) "game"
["FKCOLUMN_NAME"]=>
string(12) "athlete_code"
["KEY_SEQ"]=>
string(1) "1"
["UPDATE_RULE"]=>
string(1) "1"
["DELETE_RULE"]=>
string(1) "1"
["FK_NAME"]=>
string(20) "fk_game_athlete_code"
["PK_NAME"]=>
string(15) "pk_athlete_code"
}
[1]=>
array(9) {
["PKTABLE_NAME"]=>
string(5) "event"
["PKCOLUMN_NAME"]=>
string(4) "code"
["FKTABLE_NAME"]=>
string(4) "game"
["FKCOLUMN_NAME"]=>
string(10) "event_code"
["KEY_SEQ"]=>
string(1) "1"
["UPDATE_RULE"]=>
string(1) "1"
["DELETE_RULE"]=>
string(1) "1"
["FK_NAME"]=>
string(18) "fk_game_event_code"
["PK_NAME"]=>
string(13) "pk_event_code"
}
}
--- Column Attribute ---
array(1) {
[0]=>
array(13) {
["ATTR_NAME"]=>
string(4) "area"
["DOMAIN"]=>
string(1) "7"
["SCALE"]=>
string(1) "2"
["PRECISION"]=>
string(2) "10"
["INDEXED"]=>
string(1) "0"
["NON_NULL"]=>
string(1) "0"
["SHARED"]=>
string(1) "0"
["UNIQUE"]=>
string(1) "0"
["DEFAULT"]=>
NULL
["ATTR_ORDER"]=>
string(1) "4"
["CLASS_NAME"]=>
string(7) "stadium"
["SOURCE_CLASS"]=>
string(7) "stadium"
["IS_KEY"]=>
string(1) "0"
}
}