create pdf report from database in asp.net using c# and vb.net

create pdf report from database in asp.net using c# and vb.net

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This works with CLOBs as well as BLOBs. Loading a directory of text files using SQLLDR in this fashion is easy.

Oracle Utilities Guide manual. This reference contains a section dedicated to external tables. The Oracle SQL Reference Guide manual provides the basic syntax, but not the details of the ACCESS PARAMETERS section.

package banking; import java.security.*; public final class BankingPermission extends BasicPermission { public BankingPermission(String name) { super(name); } public BankingPermission(String name, String actions) { super(name, actions); } }

Now that we know how to load into a simple table we have created ourselves, we might also find the need to load into a table that has a complex object type with a LOB in it. This happens most frequently when using the image capabilities. The image capabilities are implemented using a complex object type, ORDSYS.ORDIMAGE. We need to be able to tell SQLLDR how to load into this. To load a LOB into an ORDIMAGE type column, we must understand a little more about the structure of the ORDIMAGE type. Using a table we want to load into, and a DESCRIBE on that table in SQL*Plus, we discover that we have a column called IMAGE of type ORDSYS.ORDIMAGE, which we want to ultimately load into IMAGE.SOURCE.LOCALDATA. The following examples will work only if you have interMedia installed and configured; otherwise, the datatype ORDSYS.ORDIMAGE will be an unknown type: ops$tkyte@ORA11GR2> create table image_load( 2 id number, 3 name varchar2(255), 4 image ordsys.ordimage 5 ) 6 / Table created.

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Lastly, we get to the LOCATION section of the external table definition: location ( 'demo1.ctl' ) ) REJECT LIMIT UNLIMITED That tells Oracle the name of the file to load, which is demo1.ctl in this case since we used INFILE * in the original control file. The next statement in the control file is the default INSERT that can be used to load the table from the external table itself: INSERT statements used to load internal tables: -----------------------------------------------------------------------INSERT /*+ append */ INTO DEPT ( DEPTNO, DNAME,

ops$tkyte@ORA11GR2> desc image_load Name Null ---------------------------------------- -------ID NAME IMAGE ops$tkyte@ORA11GR2> desc ordsys.ordimage Name Null ---------------------------------------- -------SOURCE HEIGHT WIDTH CONTENTLENGTH ... ops$tkyte@ORA11GR2> desc ordsys.ordsource Name Null ---------------------------------------- -------LOCALDATA SRCTYPE SRCLOCATION ...

The class BankingPermission defines two constructors to match those in the base BasicPermission class. The actions parameter in the second constructor is unused and exists only to instantiate the permission object from a policy file. To learn more, refer to the JDK documentation. Now let s modify the AccountSimpleImpl class to check permission in each of its public methods. Each change is simply a call to AccessController.checkPermission() with a BankingPermission object as an argument. Each BankingPermission needs a name argument to specify the kind of permission sought. We employ a simple scheme that uses the method name itself as the permission string. Listing 10.12 shows the implementation of AccountSimpleImpl where each method checks the permission before executing its core logic.

Type ---------------------------NUMBER VARCHAR2(255) ORDSYS.ORDIMAGE Type ---------------------------ORDSYS.ORDSOURCE NUMBER(38) NUMBER(38) NUMBER(38)

LOC ) SELECT "DEPTNO", "DNAME", "LOC" FROM "SYS_SQLLDR_X_EXT_DEPT" That would perform the logical equivalent of a direct path load if possible (assuming the APPEND hint may be obeyed; the existence of triggers or foreign key constraints may prevent the direct path operation from taking place). Lastly, in the log file, we ll see statements that may be used to remove the objects SQLLDR would have us create after the load was complete: statements to cleanup objects created by previous statements: -----------------------------------------------------------------------DROP TABLE "SYS_SQLLDR_X_EXT_DEPT" DROP DIRECTORY SYS_SQLLDR_XT_TMPDIR_00000 And that is it. If we take that log file and insert / where appropriate to make it a valid SQL*Plus script, then we should be ready to go or not, depending on the permissions in place. For example, assuming the schema I log into has the CREATE ANY DIRECTORY privilege or READ access to an existing directory, I might observe the following: ops$tkyte@ORA10G> INSERT /*+ append */ INTO DEPT 2 ( 3 DEPTNO, 4 DNAME, 5 LOC 6 ) 7 SELECT 8 "DEPTNO", 9 "DNAME", 10 "LOC" 11 FROM "SYS_SQLLDR_X_EXT_DEPT" 12 / INSERT /*+ append */ INTO DEPT * ERROR at line 1: ORA-29913: error in executing ODCIEXTTABLEOPEN callout ORA-29400: data cartridge error KUP-04063: unable to open log file demo1.log_xt OS error Permission denied ORA-06512: at "SYS.ORACLE_LOADER", line 19 ORA-06512: at line 1 Well, that doesn t seem right at first. I m logged into the operating system as TKYTE, the directory I m logging into is /home/tkyte, and I own that directory, so I can certainly write to it (I created the SQLLDR log file there, after all!). What happened The fact is that the external

Type ---------------------------BLOB VARCHAR2(4000) VARCHAR2(4000)

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