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PDO::cubrid_schema
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PDO::cubrid_schema — Get the requested schema information
Description
$schema_type
[, string $table_name
[, string $col_name
]] ) : array
This function is used to get the requested schema information from
database. You have to designate table_name, if you
want to get information on certain table, col_name,
if you want to get information on certain column (can be used only with
PDO::CUBRID_SCH_COL_PRIVILEGE).
The result of this function is returned as a two-dimensional array (column (associative array) * row (numeric array)). The following tables shows types of schema and the column structure of the result array to be returned based on the schema type.
| Schema | Column Number | Column Name | Value |
|---|---|---|---|
| PDO::CUBRID_SCH_TABLE | 1 | NAME | |
| 2 | TYPE | 0:system table 1:view 2:table | |
| PDO::CUBRID_SCH_VIEW | 1 | NAME | |
| 2 | TYPE | 1:view | |
| PDO::CUBRID_SCH_QUERY_SPEC | 1 | QUERY_SPEC | |
| PDO::CUBRID_SCH_ATTRIBUTE / PDO::CUBRID_SCH_TABLE_ATTRIBUTE | 1 | ATTR_NAME | |
| 2 | DOMAIN | ||
| 3 | SCALE | ||
| 4 | PRECISION | ||
| 5 | INDEXED | 1:indexed | |
| 6 | NOT NULL | 1:not null | |
| 7 | SHARED | 1:shared | |
| 8 | UNIQUE | 1:unique | |
| 9 | DEFAULT | ||
| 10 | ATTR_ORDER | base:1 | |
| 11 | CLASS_NAME | ||
| 12 | SOURCE_CLASS | ||
| 13 | IS_KEY | 1:key | |
| PDO::CUBRID_SCH_METHOD / PDO::CUBRID_SCH_TABLE_METHOD | 1 | NAME | |
| 2 | RET_DOMAIN | ||
| 3 | ARG_DOMAIN | ||
| PDO::CUBRID_SCH_METHOD_FILE | 1 | METHOD_FILE | |
| PDO::CUBRID_SCH_SUPER_TABLE / PDO::CUBRID_SCH_DIRECT_SUPER_TABLE / PDO::CUBRID_SCH_SUB_TABLE | 1 | CLASS_NAME | |
| 2 | TYPE | 0:system table 1:view 2:table | |
| PDO::CUBRID_SCH_CONSTRAINT | 1 | TYPE | 0:unique 1:index 2:reverse unique 3:reverse index |
| 2 | NAME | ||
| 3 | ATTR_NAME | ||
| 4 | NUM_PAGES | ||
| 5 | NUM_KEYS | ||
| 6 | PRIMARY_KEY | 1:primary key | |
| 7 | KEY_ORDER | base:1 | |
| PDO::CUBRID_SCH_TRIGGER | 1 | NAME | |
| 2 | STATUS | ||
| 3 | EVENT | ||
| 4 | TARGET_CLASS | ||
| 5 | TARGET_ATTR | ||
| 6 | ACTION_TIME | ||
| 7 | ACTION | ||
| 8 | PRIORITY | ||
| 9 | CONDITION_TIME | ||
| 10 | CONDITION | ||
| PDO::CUBRID_SCH_TABLE_PRIVILEGE / PDO::CUBRID_SCH_COL_PRIVILEGE | 1 | CLASS_NAME / ATTR_NAME | |
| 2 | PRIVILEGE | ||
| 3 | GRANTABLE | ||
| PDO::CUBRID_SCH_PRIMARY_KEY | 1 | CLASS_NAME | |
| 2 | ATTR_NAME | ||
| 3 | KEY_SEQ | base:1 | |
| 4 | KEY_NAME | ||
| PDO::CUBRID_SCH_IMPORTED_KEYS / PDO::CUBRID_SCH_EXPORTED_KEYS / PDO::CUBRID_SCH_CROSS_REFERENCE | 1 | PKTABLE_NAME | |
| 2 | PKCOLUMN_NAME | ||
| 3 | FKTABLE_NAME | base:1 | |
| 4 | FKCOLUMN_NAME | ||
| 5 | KEY_SEQ | base:1 | |
| 6 | UPDATE_ACTION | 0:cascade 1:restrict 2:no action 3:set null | |
| 7 | DELETE_ACTION | 0:cascade 1:restrict 2:no action 3:set null | |
| 8 | FK_NAME | ||
| 9 | PK_NAME |
Parameters
-
schema_type -
Schema type that you want to know.
-
table_name -
Table you want to know the schema of.
-
col_name -
Column you want to know the schema of.
Return Values
Array containing the schema information, when process is successful;
FALSE, when process is unsuccessful
Examples
Example #1 A PDO::cubrid_schema() example
This example shows how to get primary key and foreign keys of table game.
<?php
$pk_list = $dbh->cubrid_schema(PDO::CUBRID_SCH_PRIMARY_KEY, "game");
print_r($pk_list);
$fk_list = $dbh->cubrid_schema(PDO::CUBRID_SCH_IMPORTED_KEYS, "game");
print_r($fk_list);
?>
The above example will output:
Result:
Array
(
[0] => Array
(
[CLASS_NAME] => game
[ATTR_NAME] => athlete_code
[KEY_SEQ] => 3
[KEY_NAME] => pk_game_host_year_event_code_athlete_code
)
[1] => Array
(
[CLASS_NAME] => game
[ATTR_NAME] => event_code
[KEY_SEQ] => 2
[KEY_NAME] => pk_game_host_year_event_code_athlete_code
)
[2] => Array
(
[CLASS_NAME] => game
[ATTR_NAME] => host_year
[KEY_SEQ] => 1
[KEY_NAME] => pk_game_host_year_event_code_athlete_code
)
)
Array
(
[0] => Array
(
[PKTABLE_NAME] => athlete
[PKCOLUMN_NAME] => code
[FKTABLE_NAME] => game
[FKCOLUMN_NAME] => athlete_code
[KEY_SEQ] => 1
[UPDATE_RULE] => 1
[DELETE_RULE] => 1
[FK_NAME] => fk_game_athlete_code
[PK_NAME] => pk_athlete_code
)
[1] => Array
(
[PKTABLE_NAME] => event
[PKCOLUMN_NAME] => code
[FKTABLE_NAME] => game
[FKCOLUMN_NAME] => event_code
[KEY_SEQ] => 1
[UPDATE_RULE] => 1
[DELETE_RULE] => 1
[FK_NAME] => fk_game_event_code
[PK_NAME] => pk_event_code
)
)
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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