Schema

API reference › yii › db › oci › Schema

class	`yii\db\oci\Schema`
Extends	`yii\db\Schema` » `yii\base\BaseObject`
Implements	`yii\db\ConstraintFinderInterface`, `yii\base\Configurable`
Uses traits	`yii\db\ConstraintFinderTrait`
Since	2.0
Source	`framework/db/oci/Schema.php`

Schema is the class for retrieving metadata from an Oracle database.

Properties

Property	Type	Description	Defined by
`$columnSchemaClass`	`class-string<yii\db\T>\|array{class?: class-string<yii\db\T>, __class?: class-string<yii\db\T>}`	Default: `\yii\db\oci\ColumnSchema::class`. Available since 2.0.11.	`Schema`
`$db`	`yii\db\Connection`	The database connection Default: `null`.	`yii\db\Schema`
`$defaultSchema`	`string`	The default schema name used for the current session. Default: `null`.	`yii\db\Schema`
`$exceptionMap`	`array`	Map of DB errors and corresponding exceptions If left part is found in DB error message exception class from the right part is used. Default: `['ORA-00001: unique constraint' => \yii\db\IntegrityException::class]`.	`Schema`
`$lastInsertID` read-only	`string`	The row ID of the last row inserted, or the last value retrieved from the sequence object.	`Schema`
`$queryBuilder` read-only	`yii\db\TQueryBuilder`	The query builder for this connection.	`yii\db\Schema`
`$schemaChecks` read-only	`yii\db\CheckConstraint[][]`	Check constraints for all tables in the database.	`yii\db\ConstraintFinderTrait`
`$schemaDefaultValues` read-only	`yii\db\DefaultValueConstraint[]`	Default value constraints for all tables in the database.	`yii\db\ConstraintFinderTrait`
`$schemaForeignKeys` read-only	`yii\db\ForeignKeyConstraint[][]`	Foreign keys for all tables in the database.	`yii\db\ConstraintFinderTrait`
`$schemaIndexes` read-only	`yii\db\IndexConstraint[][]`	Indexes for all tables in the database.	`yii\db\ConstraintFinderTrait`
`$schemaNames` read-only	`string[]`	All schema names in the database, except system schemas.	`yii\db\Schema`
`$schemaPrimaryKeys` read-only	`yii\db\Constraint[]`	Primary keys for all tables in the database.	`yii\db\ConstraintFinderTrait`
`$schemaUniques` read-only	`yii\db\IndexConstraint[][]`	Unique constraints for all tables in the database.	`yii\db\ConstraintFinderTrait`
`$serverVersion` read-only	`string`	Server version as a string.	`yii\db\Schema`
`$systemSchemaNames`	`list<string>`	List of schema names that should be excluded from `getSchemaNames()`. Default: `[]`.	`yii\db\Schema`
`$tableNames` read-only	`string[]`	All table names in the database.	`yii\db\Schema`
`$tableSchemas` read-only	`yii\db\TableSchema[]`	The metadata for all tables in the database.	`yii\db\Schema`
`$transactionIsolationLevel` write-only	`string`	The transaction isolation level to use for this transaction.	`yii\db\Schema`
`$columnQuoteCharacter` protected	`string\|string[]`	Character used to quote column names. Default: `'"'`. Available since 2.0.14.	`yii\db\Schema`
`$tableQuoteCharacter` protected	`string\|string[]`	Default: `'"'`. Available since 2.0.14.	`Schema`

Methods

Method	Description	Defined by
`__construct()`	Constructor.	`yii\base\BaseObject`
`__call()`	Calls the named method which is not a class method.	`yii\base\BaseObject`
`__get()`	Returns the value of an object property.	`yii\base\BaseObject`
`__isset()`	Checks if a property is set, i.e. defined and not null.	`yii\base\BaseObject`
`__set()`	Sets value of an object property.	`yii\base\BaseObject`
`__unset()`	Sets an object property to null.	`yii\base\BaseObject`
`canGetProperty()`	Returns a value indicating whether a property can be read.	`yii\base\BaseObject`
`canSetProperty()`	Returns a value indicating whether a property can be set.	`yii\base\BaseObject`
`className()` static	Returns the fully qualified name of this class.	`yii\base\BaseObject`
`convertException()`	Converts a DB exception to a more concrete one if possible.	`yii\db\Schema`
`createColumnSchemaBuilder()`	Create a column schema builder instance giving the type and value precision.	`Schema`
`createQueryBuilder()`	Creates a query builder for the database.	`Schema`
`createSavepoint()`	Creates a new savepoint.	`yii\db\Schema`
`findUniqueIndexes()`	Returns all unique indexes for the given table.	`Schema`
`getLastInsertID()`		`Schema`
`getPdoType()`	Determines the PDO type for the given PHP data value.	`yii\db\Schema`
`getQueryBuilder()`		`yii\db\Schema`
`getRawTableName()`	Returns the actual name of a given table name.	`yii\db\Schema`
`getSchemaChecks()`	Returns check constraints for all tables in the database.	`yii\db\ConstraintFinderTrait`
`getSchemaDefaultValues()`	Returns default value constraints for all tables in the database.	`yii\db\ConstraintFinderTrait`
`getSchemaForeignKeys()`	Returns foreign keys for all tables in the database.	`yii\db\ConstraintFinderTrait`
`getSchemaIndexes()`	Returns indexes for all tables in the database.	`yii\db\ConstraintFinderTrait`
`getSchemaNames()`	Returns all schema names in the database, except system schemas.	`yii\db\Schema`
`getSchemaPrimaryKeys()`	Returns primary keys for all tables in the database.	`yii\db\ConstraintFinderTrait`
`getSchemaUniques()`	Returns unique constraints for all tables in the database.	`yii\db\ConstraintFinderTrait`
`getServerVersion()`	Returns a server version as a string comparable by `version_compare()`.	`yii\db\Schema`
`getTableChecks()`	Obtains the check constraints information for the named table.	`yii\db\ConstraintFinderTrait`
`getTableDefaultValues()`	Obtains the default value constraints information for the named table.	`yii\db\ConstraintFinderTrait`
`getTableForeignKeys()`	Obtains the foreign keys information for the named table.	`yii\db\ConstraintFinderTrait`
`getTableIndexes()`	Obtains the indexes information for the named table.	`yii\db\ConstraintFinderTrait`
`getTableNames()`	Returns all table names in the database.	`yii\db\Schema`
`getTablePrimaryKey()`	Obtains the primary key for the named table.	`yii\db\ConstraintFinderTrait`
`getTableSchema()`	Obtains the metadata for the named table.	`yii\db\Schema`
`getTableSchemas()`	Returns the metadata for all tables in the database.	`yii\db\Schema`
`getTableUniques()`	Obtains the unique constraints information for the named table.	`yii\db\ConstraintFinderTrait`
`hasMethod()`	Returns a value indicating whether a method is defined.	`yii\base\BaseObject`
`hasProperty()`	Returns a value indicating whether a property is defined.	`yii\base\BaseObject`
`init()`	Initializes the object.	`Schema`
`insert()`	Executes the INSERT command, returning primary key values.	`Schema`
`isReadQuery()`	Returns a value indicating whether a SQL statement is for read purpose.	`yii\db\Schema`
`quoteColumnName()`	Quotes a column name for use in a query.	`yii\db\Schema`
`quoteSimpleColumnName()`	Quotes a simple column name for use in a query.	`yii\db\Schema`
`quoteSimpleTableName()`	Quotes a simple table name for use in a query.	`yii\db\Schema`
`quoteTableName()`	Quotes a table name for use in a query.	`yii\db\Schema`
`quoteValue()`	Quotes a string value for use in a query.	`yii\db\Schema`
`refresh()`	Refreshes the schema.	`yii\db\Schema`
`refreshTableSchema()`	Refreshes the particular table schema.	`yii\db\Schema`
`releaseSavepoint()`	Releases an existing savepoint.	`Schema`
`resolveRawTableName()`	Resolves the table name and schema name (if any) without loading database metadata.	`yii\db\Schema`
`rollBackSavepoint()`	Rolls back to a previously created savepoint.	`yii\db\Schema`
`setTransactionIsolationLevel()`	Sets the isolation level of the current transaction.	`yii\db\Schema`
`supportsSavepoint()`		`yii\db\Schema`
`unquoteSimpleColumnName()`	Unquotes a simple column name.	`yii\db\Schema`
`unquoteSimpleTableName()`	Unquotes a simple table name.	`yii\db\Schema`
`createColumn()` protected	Creates ColumnSchema instance.	`Schema`
`createColumnSchema()` protected	Creates a column schema for the database.	`yii\db\Schema`
`extractColumnSize()` protected	Extracts size, precision and scale information from column’s DB type.	`Schema`
`extractColumnType()` protected	Extracts the data types for the given column.	`Schema`
`findColumns()` protected	Collects the table column metadata.	`Schema`
`findConstraints()` protected	Finds constraints and fills them into TableSchema object passed.	`Schema`
`findSchemaNames()` protected	Returns all schema names in the database, including the default one but not system schemas.	`Schema`
`findTableNames()` protected	Returns all table names in the database.	`Schema`
`getCacheKey()` protected	Returns the cache key for the specified table name.	`yii\db\Schema`
`getCacheTag()` protected	Returns the cache tag name.	`yii\db\Schema`
`getColumnPhpType()` protected	Extracts the PHP type from abstract DB type.	`yii\db\Schema`
`getSchemaMetadata()` protected	Returns the metadata of the given type for all tables in the given schema.	`yii\db\Schema`
`getTableMetadata()` protected	Returns the metadata of the given type for the given table.	`yii\db\Schema`
`getTableNameParts()` protected	Splits full table name into parts.	`yii\db\Schema`
`getTableSequenceName()` protected	Sequence name of table.	`Schema`
`loadTableChecks()` protected		`Schema`
`loadTableDefaultValues()` protected		`Schema`
`loadTableForeignKeys()` protected		`Schema`
`loadTableIndexes()` protected		`Schema`
`loadTablePrimaryKey()` protected		`Schema`
`loadTableSchema()` protected	Loads the metadata for the specified table.	`Schema`
`loadTableUniques()` protected		`Schema`
`normalizePdoRowKeyCase()` protected	Changes row’s array key case to lower if PDO’s one is set to uppercase.	`yii\db\Schema`
`resolveTableName()` protected	Resolves the table name and schema name (if any).	`Schema`
`setTableMetadata()` protected	Sets the metadata of the given type for the given table.	`yii\db\Schema`

Constants

Constant	Value	Description	Defined by
`TYPE_PK`	`'pk'`		`yii\db\Schema`
`TYPE_UPK`	`'upk'`		`yii\db\Schema`
`TYPE_BIGPK`	`'bigpk'`		`yii\db\Schema`
`TYPE_UBIGPK`	`'ubigpk'`		`yii\db\Schema`
`TYPE_CHAR`	`'char'`		`yii\db\Schema`
`TYPE_STRING`	`'string'`		`yii\db\Schema`
`TYPE_TEXT`	`'text'`		`yii\db\Schema`
`TYPE_TINYINT`	`'tinyint'`		`yii\db\Schema`
`TYPE_SMALLINT`	`'smallint'`		`yii\db\Schema`
`TYPE_INTEGER`	`'integer'`		`yii\db\Schema`
`TYPE_BIGINT`	`'bigint'`		`yii\db\Schema`
`TYPE_FLOAT`	`'float'`		`yii\db\Schema`
`TYPE_DOUBLE`	`'double'`		`yii\db\Schema`
`TYPE_DECIMAL`	`'decimal'`		`yii\db\Schema`
`TYPE_DATETIME`	`'datetime'`		`yii\db\Schema`
`TYPE_TIMESTAMP`	`'timestamp'`		`yii\db\Schema`
`TYPE_TIME`	`'time'`		`yii\db\Schema`
`TYPE_DATE`	`'date'`		`yii\db\Schema`
`TYPE_BINARY`	`'binary'`		`yii\db\Schema`
`TYPE_BOOLEAN`	`'boolean'`		`yii\db\Schema`
`TYPE_MONEY`	`'money'`		`yii\db\Schema`
`TYPE_JSON`	`'json'`		`yii\db\Schema`
`SCHEMA_CACHE_VERSION`	`1`	Schema cache version, to detect incompatibilities in cached values when the data format of the cache changes.	`yii\db\Schema`

Property details

$tableQuoteCharacter

protected string|string[] $tableQuoteCharacter = '"'

An array of 2 characters can be used in case starting and ending characters are different.

Since

2.0.14

Method details

createColumnSchemaBuilder()

public function createColumnSchemaBuilder(mixed $type, mixed $length = null): yii\db\ColumnSchemaBuilder

Create a column schema builder instance giving the type and value precision.

This method may be overridden by child classes to create a DBMS-specific column schema builder.

Parameters

Parameter	Type	Description
`$type`	`mixed`	Type of the column. See `ColumnSchemaBuilder::$type`.
`$length`	`mixed`	Length or precision of the column. See `ColumnSchemaBuilder::$length`.

Returns

yii\db\ColumnSchemaBuilder: Column schema builder instance

Since

2.0.6

createQueryBuilder()

public function createQueryBuilder(): yii\db\TQueryBuilder

Creates a query builder for the database.

This method may be overridden by child classes to create a DBMS-specific query builder.

Returns

yii\db\TQueryBuilder: Query builder instance

findUniqueIndexes()

public function findUniqueIndexes(yii\db\TableSchema $table): array

Returns all unique indexes for the given table.

Each array element is of the following structure:

[
    'IndexName1' => ['col1' [, ...]],
    'IndexName2' => ['col2' [, ...]],
]

Parameters

Parameter	Type	Description
`$table`	`yii\db\TableSchema`	The table metadata.

Returns

array: All unique indexes for the given table.

Since

2.0.4

getLastInsertID()

public function getLastInsertID(string $sequenceName = ''): string

Parameters

Parameter	Type	Description
`$sequenceName`	`string`	Name of the sequence object (required by some DBMS)

Returns

string: The row ID of the last row inserted, or the last value retrieved from the sequence object

Throws

yii\base\InvalidCallException: if the DB connection is not active

See also

https://www.php.net/manual/en/function.PDO-lastInsertId.php (-> Oracle does not support this Returns the ID of the last inserted row or sequence value.)

init()

public function init(): mixed

Initializes the object.

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

Returns

mixed

insert()

public function insert(mixed $table, mixed $columns): array|false

Executes the INSERT command, returning primary key values.

Merges primary-key and BLOB locator entries into one Oracle RETURNING clause.

Parameters

Parameter	Type	Description
`$table`	`mixed`	The table that new rows will be inserted into.
`$columns`	`mixed`	The column data (name => value) to be inserted into the table.

Returns

array|false: Primary key values or false if the command fails

Since

2.0.4

releaseSavepoint()

public function releaseSavepoint(mixed $name): mixed

Releases an existing savepoint.

Parameters

Parameter	Type	Description
`$name`	`mixed`	The savepoint name

Returns

mixed

createColumn()

protected function createColumn(array $column): yii\db\oci\T

Creates ColumnSchema instance.

Parameters

Parameter	Type	Description
`$column`	`array`

Returns

yii\db\oci\T

extractColumnSize()

protected function extractColumnSize(yii\db\oci\ColumnSchema $column, string $dbType, string $precision, string $scale, string $length): mixed

Extracts size, precision and scale information from column’s DB type.

Parameters

Parameter	Type	Description
`$column`	`ColumnSchema`
`$dbType`	`string`	The column’s DB type
`$precision`	`string`	Total number of digits. This parameter is available since version 2.0.4.
`$scale`	`string`	Number of digits on the right of the decimal separator. This parameter is available since version 2.0.4.
`$length`	`string`	Length for character types. This parameter is available since version 2.0.4.

Returns

mixed

extractColumnType()

protected function extractColumnType(yii\db\oci\ColumnSchema $column, string $dbType, string $precision, string $scale, string $length): mixed

Extracts the data types for the given column.

Parameters

Parameter	Type	Description
`$column`	`ColumnSchema`
`$dbType`	`string`	DB type
`$precision`	`string`	Total number of digits. This parameter is available since version 2.0.4.
`$scale`	`string`	Number of digits on the right of the decimal separator. This parameter is available since version 2.0.4.
`$length`	`string`	Length for character types. This parameter is available since version 2.0.4.

Returns

mixed

findColumns()

protected function findColumns(yii\db\TableSchema $table): bool

Collects the table column metadata.

Parameters

Parameter	Type	Description
`$table`	`yii\db\TableSchema`	The table schema.

Returns

bool: Whether the table exists.

findConstraints()

protected function findConstraints(yii\db\TableSchema $table): mixed

Finds constraints and fills them into TableSchema object passed.

Parameters

Parameter	Type	Description
`$table`	`yii\db\TableSchema`

Returns

mixed

findSchemaNames()

protected function findSchemaNames(): array

Returns all schema names in the database, including the default one but not system schemas.

This method should be overridden by child classes in order to support this feature because the default implementation simply throws an exception.

Returns

array: All schema names in the database, except system schemas.

Throws

yii\base\NotSupportedException: if this method is not supported by the DBMS.

Since

2.0.4

See also

https://docs.oracle.com/cd/B28359_01/server.111/b28337/tdpsg_user_accounts.htm

findTableNames()

protected function findTableNames(mixed $schema = ''): array

Returns all table names in the database.

This method should be overridden by child classes in order to support this feature because the default implementation simply throws an exception.

Parameters

Parameter	Type	Description
`$schema`	`mixed`	The schema of the tables. Defaults to empty string, meaning the current or default schema.

Returns

array: All table names in the database. The names have NO schema name prefix.

Throws

yii\base\NotSupportedException: if this method is not supported by the DBMS.

getTableSequenceName()

protected function getTableSequenceName(string $tableName): string|null

Sequence name of table.

Resolves the sequence backing the table’s primary key, supporting two storage idioms:

IDENTITY columns (Oracle 12.1+): returns the system-generated ISEQ$$_* sequence from USER_TAB_IDENTITY_COLS. Surfaced so framework machinery that reads \yii\db\TableSchema::$sequenceName (notably \yii\test\ActiveFixture::resetTable()) continues to work for tables created with Schema::TYPE_PK.
Legacy trigger + sequence pairs (pre-22.0): falls back to the USER_DEPENDENCIES / USER_TRIGGERS join so applications that have not yet migrated their tables continue to expose the user-named sequence.

Parameters

Parameter	Type	Description
`$tableName`	`string`	Table name.

Returns

string|null: Whether the sequence exists.

loadTableChecks()

protected function loadTableChecks(mixed $tableName)

Parameters

Parameter	Type	Description
`$tableName`	`mixed`

loadTableDefaultValues()

protected function loadTableDefaultValues(mixed $tableName)

Parameters

Parameter	Type	Description
`$tableName`	`mixed`

Throws

yii\base\NotSupportedException: if this method is called.

loadTableForeignKeys()

protected function loadTableForeignKeys(mixed $tableName)

Parameters

Parameter	Type	Description
`$tableName`	`mixed`

loadTableIndexes()

protected function loadTableIndexes(mixed $tableName)

Parameters

Parameter	Type	Description
`$tableName`	`mixed`

loadTablePrimaryKey()

protected function loadTablePrimaryKey(mixed $tableName)

Parameters

Parameter	Type	Description
`$tableName`	`mixed`

loadTableSchema()

protected function loadTableSchema(mixed $name): yii\db\TableSchema|null

Loads the metadata for the specified table.

Parameters

Parameter	Type	Description
`$name`	`mixed`	Table name

Returns

yii\db\TableSchema|null: DBMS-dependent table metadata, null if the table does not exist.

loadTableUniques()

protected function loadTableUniques(mixed $tableName)

Parameters

Parameter	Type	Description
`$tableName`	`mixed`

resolveTableName()

protected function resolveTableName(mixed $name): yii\db\TableSchema

Resolves the table name and schema name (if any).

Parameters

Parameter	Type	Description
`$name`	`mixed`	The table name

Returns

yii\db\TableSchema: TableSchema with resolved table, schema, etc. names.

Throws

yii\base\NotSupportedException: if this method is not supported by the DBMS.

Since

2.0.13