ADOdb

Database Abstraction Layer for PHP

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v5:database:oracle [2018/07/11 01:17] – [oci8po] mnewnhamv5:database:oracle [2025/06/01 13:21] (current) – Remove square brackets in tags dregad
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 ^ADOdb V6|Yes| ^ADOdb V6|Yes|
 == Alternatives == == Alternatives ==
-**Alternative Drivers**\\ +[[v5:database:pdo#pdo_oci|PDO driver for Oracle]] 
-[[v5:database:pdo#pdo_oci|PDO driver for Oracle]]\\ +== See Also == 
-[[v5:database:ado|ADO driver for Oracle]]+[[v5:reference:connection:setconnectionparameter#oracle|setConnectionParameter()]]
 </WRAP> </WRAP>
  
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 | [[v5:database:oracle:bind|bind()]]                    | A fast way of updating records             | | [[v5:database:oracle:bind|bind()]]                    | A fast way of updating records             |
 | [[v5:database:oracle:executecursor|executeCursor()]]  | Returns a cursor to procedure as a handle  | | [[v5:database:oracle:executecursor|executeCursor()]]  | Returns a cursor to procedure as a handle  |
-{{tag>[oracle unix windows active]}}+{{tag>oracle unix windows active tier1}}
  
 ==== Connection Examples ==== ==== Connection Examples ====
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 The default value for ''NLS_DATE_FORMAT'' is ''YYYY-MM-DD''. To include time as well, use ''RRRR-MM-DD HH24:MI:SS'' or set the value to empty to disable this action. The default value for ''NLS_DATE_FORMAT'' is ''YYYY-MM-DD''. To include time as well, use ''RRRR-MM-DD HH24:MI:SS'' or set the value to empty to disable this action.
 +----------------------------------
 ==== Auto-Increment Column ==== ==== Auto-Increment Column ====
 [[v5:dictionary:column_attributes#AUTO or AUTOINCREMENT|Auto-increment]] support for Oracle databases is implemented by creating an on-insert trigger that retrieves a sequence number from a sequence //**SEQ_ + table name **//. This is done by default. [[v5:dictionary:column_attributes#AUTO or AUTOINCREMENT|Auto-increment]] support for Oracle databases is implemented by creating an on-insert trigger that retrieves a sequence number from a sequence //**SEQ_ + table name **//. This is done by default.
  
 +If you have long table names then the generated trigger name can exceed the maximum allowed length. To prevent this, use the class variable ''useCompactAutoIncrements''. This will change the trigger name to a generated CRC value of the name. 
 +=== Example using the table name "customer_delivery_address" ===
 +By default, the trigger name would be SEQ_CUSTOMER_DELIVERY_ADDRESS which exceeds the 16 character name for sequences. By setting ''$db->useCompactAutoIncrements=true'', the sequence name is changed to ''SEQ_401703491''
 +
 +=== Accessing the trigger in your code ===
 +<code php>
 +
 +$db->useCompactAutoIncrements=true;
 +
 +$tab = 'customer_delivery_address';
 +$tab = sprintf('SEQ_%u',crc32(strtolower($tab)));
 +
 +print $tab; //prints SEQ_401703491
 +
 +</code>
 +
 +-----------------------------------
 +==== Session Mode ====
 +
 +From ADOdb **V5.23.0**, You can use external ''(OCI_CRED_EXT)'' or privileged (''OCI_SYSOPER or OCI_SYSDBA'') sessions via the [[v5:reference:connection:setconnectionparameter|setConnectionParameter()]] method, **prior** to establishing a connection.
 +
 +<code php>
 +
 +$db = ADONewConnection('oci8');
 +$db->setConnectionParameter('session_mode', OCI_CRED_EXT);
 +$db->connect(false, 'scott', 'tiger', 'myTNS');
 +
 +</code>
 +
 +
 +----------------------------------------------
 ====== oci8po ====== ====== oci8po ======
 <WRAP right box round 300px> <WRAP right box round 300px>
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 A second difference to this driver is that it does not create a sequence to emulate auto-increment fields. You must provide the functionality yourself if you need it. A second difference to this driver is that it does not create a sequence to emulate auto-increment fields. You must provide the functionality yourself if you need it.
  
-{{tag>[oracle unix windows active portable]}}+{{tag>oracle unix windows active portable}}
 ------------------------------------ ------------------------------------
 ====== oci805 ====== ====== oci805 ======
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 </WRAP> </WRAP>
 This driver provides an undocumented enhancement to the oci8 driver This driver provides an undocumented enhancement to the oci8 driver
-{{tag>[oracle unix windows deprecated]}} + 
 +It adds a [[https://docs.oracle.com/cd/B12037_01/server.101/b10752/hintsref.htm#4942|FIRST_ROWS]] optimizer hint to the SQL statements executed with [[v5:reference:connection:selectlimit]].  
 +Note that //FIRST_ROWS// has been deprecated in Oracle 9.2, and is retained for backwards compatibility. 
 + 
 +{{tag>oracle unix windows deprecated}} 
  
 ---------------------------------------- ----------------------------------------
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 </WRAP> </WRAP>
 This driver provides an undocumented enhancement to the oci8 driver. The differences in the driver relate solely to the use of cursors in stored procedures. This may be related to information in the function [[v5:database:oracle:executecursor|executeCursor]]  and the [[v5:userguide:oracle_tutorial|Oracle Tutorial]]. If you have the appropriate expertise and the time to investigate and explain these drivers, let us know. This driver provides an undocumented enhancement to the oci8 driver. The differences in the driver relate solely to the use of cursors in stored procedures. This may be related to information in the function [[v5:database:oracle:executecursor|executeCursor]]  and the [[v5:userguide:oracle_tutorial|Oracle Tutorial]]. If you have the appropriate expertise and the time to investigate and explain these drivers, let us know.
-{{tag>[oracle unix windows deprecated]}} +{{tag>oracle unix windows deprecated}} 
  
 --------------------------------- ---------------------------------
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-{{tag>[oracle unix windows obsolete supported]}}+{{tag>oracle unix windows obsolete supported}}
  
  
v5/database/oracle.1531264628.txt.gz · Last modified: by mnewnham