某些数据库驱动程序(如PDO,PostgreSQL,Oracle,ODBC)可能需要提供完整的DSN字符串。如果是这样的话,你应该使用'dsn'配置设置,就好像你在使用驱动程序的底层原生PHP扩展一样,如下所示: 代码语言:javascript 复制 // PDO$db['default']['dsn']='pgsql:host=localhost;port=5432;dbname=database_name';// Oracle$...
database.php 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 $active_group='default'; $active_record= TRUE; $db['default']['hostname'] ='localhost/xe'; $db['default']['username'] ='root'; $db['default']['password'] ='root'; $db['default']['database'] =''; $d...
在CodeIgniter 3中,事务处理查询可以通过以下步骤完成: 1. 首先,确保你已经配置好了数据库连接。在CodeIgniter的配置文件(通常是config/database.php)中,你...
Sets the database prefix, without having to reconnect. dbprefix([$table = '']) Parameters: $table (string)– The table name to prefix Returns: The prefixed table name Return type: string Prepends a database prefix, if one exists in configuration. count_all_results([$table = ''[...
;extension=oci8_12c ; Use with Oracle Database 12c Instant Client extension=odbc extension=openssl ;extension=pdo_firebird extension=pdo_mysql ;extension=pdo_oci ;extension=pdo_odbc ;extension=pdo_pgsql extension=pdo_sqlite ;extension=pgsql ...
SQLite3 via the SQLite3 driver Microsoft SQL Server via the SQLSRV driver (version 2005 and above only) Oracle Database via the OCI8 driver (version 12.1 and above only) CodeIgniter 4 Installation There are two ways to install CodeIgniter 4: ...
Database Added support for OFFSET-FETCH with Oracle 12c for the ‘oci8’ and ‘pdo/oci’ drivers. Added support for the new MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT constant from PHP 5.6.16 for the ‘mysqli’ driver. Bug fixes for 3.0.4 Fixed a bug (#4212) - Query Builder method ...
如果存在db 1和db2databaseschemas，并且存在db1.attendance和db2.student，则您提供的查询应该可以工作。
Database Addedlist_fields()support for SQLite (‘sqlite3’ and ‘pdo_sqlite’ drivers). Added SSL connection support for the ‘mysqli’ and ‘pdo_mysql’ drivers. Libraries Changed methodset_error()to accept a custom log level (defaults to ‘error’). ...
解决方案是:在application/config/database.php文件的最后加上这一段代码: echo '<pre>'; print_r($db['default']); echo '</pre>'; echo 'Trying to connect to database: ' .$db['default']['database']; $dbh=mysql_connect ( $db['default']['hostname'], ...