CUBRID Functions (PDO_CUBRID)

简介

PDO_CUBRID is a driver that implements the PHP Data Objects (PDO) interface to enable access from PHP to CUBRID databases.

Note:

Current version of PDO_CUBRID doesn't support persistent connection now.

安装

To build the PDO_CUBRID extension, the CUBRID DBMS must be installed on the same system as PHP. PDO_CUBRID is a » PECL extension, so follow the instructions in PECL 扩展库安装 to install the PDO_CUBRID extension. Issue the configure command to point to the location of your CUBRID base dir as follows:

$ ./configure --with-pdo-cubrid=/path/to/CUBRID[,shared]

The configure command defaults to the value of the CUBRID environment variable.

PECL 扩展的 DLL 当前不可用。参见在 Windows 上构建章节。 Detailed information about installation on Linux and Windows manually, please read build-guide.html in PECL package CUBRID for reference.

Features

**PDO_CUBRID Features**
Feature	Description
Scrollable cursors	PDO_CUBRID supports scrollable cursors. The default cursor type is forward only, and you can use parameter driver_options in PDO::prepare() to change cursor type.
Timeout	PDO_CUBRID supports sql statement execution timeout setting; You can use PDO::setAttribute() to set timeout value.
Autocommit_mode and Transaction	PDO_CUBRID supports both autocommit_mode and transaction, and autocommit_mode is enabled by default. You can use PDO::setAttribute() to change its state. If you use PDO::beginTransaction() to begin a transaction, it will disable autocommit_mode automatically and restore it after PDO::commit() or PDO::rollBack() . Note that before disabling the autocommit_mode, any pending work is automatically committed.
Multiple SQL Statements	PDO_CUBRID supports Multiple SQL statements. Multiple SQL statements are separated by semicolons (;)
Schema Information	PDO_CUBRID implements a function PDO::cubrid_schema() to get schema information.
LOBs	PDO_CUBRID supports BLOB/CLOB data type. The LOB in PDO is represented as a stream, so you can insert LOBs by binding a stream, and get LOBs by reading a stream returned by CUBRID PDO. For example: Example #1 Insert LOBs in CUBRID PDO `<?php $fp = fopen ( 'lob_test.png' , 'rb' ); $sql_stmt = "INSERT INTO lob_test(name, content) VALUES('lob_test.png', ?)" ; $stmt = $dbh -> prepare ( $sql_stmt ); $ret = $stmt -> bindParam ( 1 , $fp , PDO :: PARAM_LOB ); $ret = $stmt -> execute (); ?>` Example #2 Fetch LOBs in CUBRID PDO `<?php $sql_stmt = "SELECT content FROM lob_test WHERE name='lob_test.png'" ; $stmt = $dbh -> prepare ( $sql_stmt ); $stmt -> execute (); $result = $stmt -> fetch ( PDO :: FETCH_NUM ); header ( "Content-Type: image/png" ); fpassthru ( $result [ 0 ]); ?>`
Column meta	The PDOStatement::getColumnMeta() in CUBRID PDO will return an associative array containing the following values: type name table def precision scale not_null auto_increment unique_key multiple_key primary_key foreign_key reverse_index reverse_unique
Collection Data Type	PDO_CUBRID supports SET/MULTISET/SEQUENCE data type. If you don't specify data type, the default data type is char,for example: Example #3 Insert set in CUBRID PDO with default data type. <?php $conn_str = "cubrid:dbname=demodb;host=localhost;port=33000" ; $cubrid_pdo = new PDO ( $conn_str , 'dba' , '' ); $cubrid_pdo -> exec ( "DROP TABLE if exists test_tbl" ); $cubrid_pdo -> exec ( "CREATE TABLE test_tbl (col_1 SET(VARCHAR))" ); $sql_stmt_insert = "INSERT INTO test_tbl VALUES (?);" ; $stmt = $cubrid_pdo -> prepare ( $sql_stmt_insert ); $data = array( "abc" , "def" , "ghi" ); $ret = $stmt -> bindParam ( 1 , $data , PDO :: PARAM_NULL ); $ret = $stmt -> execute (); var_Dump ( $ret ); ?> Example #4 Specify data type when insert set in CUBRID PDO <?php $conn_str = "cubrid:dbname=demodb;host=localhost;port=33000" ; $cubrid_pdo = new PDO ( $conn_str , 'dba' , '' ); $cubrid_pdo -> exec ( "DROP TABLE if exists test_tbl" ); $cubrid_pdo -> exec ( "CREATE TABLE test_tbl (col_1 SET(int))" ); $sql_stmt_insert = "INSERT INTO test_tbl VALUES (?);" ; $stmt = $cubrid_pdo -> prepare ( $sql_stmt_insert ); $data = array( 1 , 2 , 3 , 4 ); $ret = $stmt -> bindParam ( 1 , $data , 0 , 0 , "int" ); $ret = $stmt -> execute (); var_Dump ( $ret ); ?> CUBRID Bind Data Types:(The fifth parameter of PDOStatement::bindParam): CHAR STRING NCHAR VARNCHAR BIT VARBIT NUMERIC NUMBER INT SHORT BIGINT MONETARY FLOAT DOUBLE DATE TIME DATETIME TIMESTAMP

预定义常量

下列常量由此驱动定义，且仅在扩展编译入 PHP 或在运行时动态载入时可用。另外，使用此驱动时，仅会使用这些驱动特定的常量。使用其他驱动的驱动特定的常量可能会导致不可预见的情况。如果代码可运行于多个驱动， PDO::getAttribute() 可被用于获取 PDO_ATTR_DRIVER_NAME 属性以检查驱动。

The following constants can be used when setting the database attribute. They can be passed to PDO::getAttribute() or PDO::setAttribute() .

**PDO::CUBRID attribute flags**
Constant	Description
PDO::CUBRID_ATTR_ISOLATION_LEVEL	Transaction isolation level for the database connection.
PDO::CUBRID_ATTR_LOCK_TIMEOUT	Transaction timeout in seconds.
PDO::CUBRID_ATTR_MAX_STRING_LENGTH	Read only. The maximum string length for bit, varbit, char, varchar, nchar, nchar varying data types when using CUBRID PDO API.

The following constants can be used when setting the transaction isolation level. They can be passed to PDO::getAttribute() or returned by PDO::setAttribute() .

**PDO::CUBRID isolation level flags**
Constant	Description
PDO::TRAN_COMMIT_CLASS_UNCOMMIT_INSTANCE	The lowest isolation level (1). A dirty, non-repeatable or phantom read may occur for the tuple and a non-repeatable read may occur for the table as well.
PDO::TRAN_COMMIT_CLASS_COMMIT_INSTANCE	A relatively low isolation level (2). A dirty read does not occur, but non-repeatable or phantom read may occur.
PDO::TRAN_REP_CLASS_UNCOMMIT_INSTANCE	The default isolation of CUBRID (3). A dirty, non-repeatable or phantom read may occur for the tuple, but repeatable read is ensured for the table.
PDO::TRAN_REP_CLASS_COMMIT_INSTANCE	A relatively low isolation level (4). A dirty read does not occur, but non-repeatable or phantom read may.
PDO::TRAN_REP_CLASS_REP_INSTANCE	A relatively high isolation level (5). A dirty or non-repeatable read does not occur, but a phantom read may.
PDO::TRAN_SERIALIZABLE	The highest isolation level (6). Problems concerning concurrency (e.g. dirty read, non-repeatable read, phantom read, etc.) do not occur.

The following constants can be used when getting schema information. They can be passed to PDO::cubrid_schema() .

**PDO::CUBRID schema flags**
Constant	Description
PDO::CUBRID_SCH_TABLE	Get name and type of table in CUBRID.
PDO::CUBRID_SCH_VIEW	Get name and type of view in CUBRID.
PDO::CUBRID_SCH_QUERY_SPEC	Get the query definition of view.
PDO::CUBRID_SCH_ATTRIBUTE	Get the attributes of table column.
PDO::CUBRID_SCH_TABLE_ATTRIBUTE	Get the attributes of table.
PDO::CUBRID_SCH_METHOD	Get the instance method. The instance method is a method called by a class instance. It is used more often than the class method because most operations are executed in the instance.
PDO::CUBRID_SCH_TABLE_METHOD	Get the class method. The class method is a method called by a class object. It is usually used to create a new class instance or to initialize it. It is also used to access or update class attributes.
PDO::CUBRID_SCH_METHOD_FILE	Get the information of the file where the method of the table is defined.
PDO::CUBRID_SCH_SUPER_TABLE	Get the name and type of table which table inherites attributes from.
PDO::CUBRID_SCH_SUB_TABLE	Get the name and type of table which inherites attributes from this table.
PDO::CUBRID_SCH_CONSTRAINT	Get the table constraints.
PDO::CUBRID_SCH_TRIGGER	Get the table triggers.
PDO::CUBRID_SCH_TABLE_PRIVILEGE	Get the privilege information of table.
PDO::CUBRID_SCH_COL_PRIVILEGE	Get the privilege information of column.
PDO::CUBRID_SCH_DIRECT_SUPER_TABLE	Get the direct super table of table.
PDO::CUBRID_SCH_PRIMARY_KEY	Get the table primary key.
PDO::CUBRID_SCH_IMPORTED_KEYS	Get imported keys of table.
PDO::CUBRID_SCH_EXPORTED_KEYS	Get exported keys of table.
PDO::CUBRID_SCH_CROSS_REFERENCE	Get reference relationship of tow tables.

PDO_CUBRID DSN — Connecting to CUBRID databases
PDO::cubrid_schema — Get the requested schema information

CUBRID Functions (PDO_CUBRID)

简介

安装

Features

预定义常量

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