ADOdb

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====== Public Properties Of The Connection======

The Connection Object exposes numerous properties that can be used inside SQL statements to create portable statements. For example, to create a portable SQL statement that will return a column in uppercase no matter which database is in use, use the ''** $db->upperCase**'' property.

===== String Handling =====
^ Property      ^ Description                                                                                                                       ^
| $substr       | Returns the substring operator. Also available as a method [[v5:reference:connection:substr|substr()]]                            |
| $length       | Returns a length operator                                                                                                         |
| $random       | Returns the random number function                                                                                                |
| $upperCase    | The uppercase function                                                                                                            |
| $maxblobsize  | The maximum size of data that can be inserted into a blob field. Some drivers return -1 as the value, effectively limitless size  |

===== Date & Time =====
^ Property  ^ Description ^
| $sysDate  | Returns the current local date in Y-m-d format|
| $sysTimeStamp | Returns the current local date/time in Y-m-d H:i:s format|
| $sysUTimeStamp |Returns the current timestamp accurate to the microsecond or nearest fraction|

===== Database Specific Properties =====
Some drivers expose database-specific properties. See the driver documentation for more information.