How do I fix my ORA 29283?

How do I fix my ORA 29283?

ORA-29283: invalid file operation tips

  1. On the OS run the following to define a system variable:
  2. In sqlplus create the directory object to map the logical directory:
  3. Run now the following procedure to create the remote file:
  4. Now test the append to the remote file, this will create a new version of the file.

What is Utl_file in Oracle with example?

UTL_FILE I/O capabilities are similar to standard operating system stream file I/O ( OPEN , GET , PUT , CLOSE ) capabilities, but with some limitations. For example, you call the FOPEN function to return a file handle, which you use in subsequent calls to GET_LINE or PUT to perform stream I/O to a file.

What is Utl_file Fopen?

FOPEN returns a file handle, which must be passed to all subsequent procedures that operate on that file. The specific contents of the file handle are private to the UTL_FILE package, and individual components should not be referenced or changed by the UTL_FILE user.

What is the use of UTL_FILE_DIR in Oracle?

UTL_FILE_DIR lets you specify one or more directories that Oracle should use for PL/SQL file I/O. If you are specifying multiple directories, you must repeat the UTL_FILE_DIR parameter for each directory on separate lines of the initialization parameter file.

How do you export data into CSV in Oracle using PL SQL?

Create CSV file using PL/SQL

  1. To create a file, we need to create a directory and have the read write permission as.
  2. 1) create or replace directory MYCSV as ‘/home/oracle/mycsv’;
  3. Note: /home/oracle/mycsv has to be physical location on disk.
  4. 2) grant read, write on directory MYCSV to scott;

What is bulk collect in Oracle?

BULK COLLECT: These are SELECT statements that retrieve multiple rows with a single fetch, thereby improving the speed of data retrieval. FORALL: These are INSERT, UPDATE, and DELETE operations that use collections to change multiple rows of data very quickly.

What is V parameter Oracle?

V$PARAMETER displays information about the initialization parameters that are currently in effect for the session. A new session inherits parameter values from the instance-wide values displayed by the V$SYSTEM_PARAMETER view. Column. Datatype.

What is an external table in Oracle?

What is an Oracle external table. An external table is a table whose data come from flat files stored outside of the database. Oracle can parse any file format supported by the SQL*Loader.

How do I read a CSV file in PL SQL?

SQL> declare 2 l_file utl_file. file_type; 3 l_text varchar2(32767); 4 l_cnt number; 5 begin 6 — Open file.

So you can “query” the file as a table.

  1. If your Oracle database is on:
  2. First row of file no have column names.
  3. Delimiter is comma, ascii 44, “,”.

How do I export data from PL SQL to Excel?

Steps to export query output to Excel in SQL Developer

  1. Step 1: Run your query. To start, you’ll need to run your query in SQL Developer.
  2. Step 2: Open the Export Wizard.
  3. Step 3: Select the Excel format and the location to export your file.
  4. Step 4: Export the query output to Excel.

How many types of pragma are there in Oracle?

Pragma directives are processed at compile time where they pass necessary information to the compiler; they are not processed at runtime. The 5 types of Pragma directives available in Oracle are listed below (Four of them exist since Oracle8i while the last one has been introduced with Oracle11g):

What is pragma Autonomous_transaction?

The AUTONOMOUS_TRANSACTION pragma changes the way a subprogram works within a transaction. A subprogram marked with this pragma can do SQL operations and commit or roll back those operations, without committing or rolling back the data in the main transaction.

How do I change parameters in Oracle?

You can change the value of a parameter in a parameter file in several ways.

  1. By editing an initialization parameter file.
  2. By issuing an ALTER SYSTEM SET …
  3. By issuing an ALTER SYSTEM RESET statement to clear an initialization parameter value.

What is Optimizer_dynamic_sampling?

1.184 OPTIMIZER_DYNAMIC_SAMPLING

OPTIMIZER_DYNAMIC_SAMPLING controls both when the database gathers dynamic statistics, and the size of the sample that the optimizer uses to gather the statistics. Note: Dynamic statistics were called dynamic sampling in releases before Oracle Database 12c.

What is the difference between internal table and external table?

An internal table data is stored in the warehouse folder, whereas an external table data is stored at the location you mentioned in table creation.

How many types of views are there in Oracle?

There are two types: static data dictionary views and dynamic performance views. Complete descriptions of the views in the SYS schema are in Oracle Database Reference. The data dictionary views are called static views because they change infrequently, only when a change is made to the data dictionary.

How do I import a CSV file into Oracle Plsql?

Load CSV data file using SQL Developer

  1. Right-click on the target table you want to load CSV data into and click Import Data.
  2. Browse to and choose the CSV file you want to upload.
  3. Again, I lean on the defaults.
  4. In this step you map out the field headers you want to import from, optionally ordering them in a certain order.

How do I import a CSV file into SQL?

Import CSV File Into SQL Server Using SQL Server Management…

  1. Log in to your database using SQL Server Management Studio.
  2. Right-click the database and select Tasks -> Import Data.

How do I export data from Oracle to Excel automatically?

Select Tools, and then Export as Spreadsheet. Depending on how you want to export the data, take an action: Select Save, and then save the file. Select Open, and then work with the data in the browser instance of Microsoft Excel that displays.

Can we write commit in trigger?

You can’t commit inside a trigger anyway. Show activity on this post. Trigger should not commit and cannot commit. Committing in a trigger usually raises an exception unless it happens into autonomous transaction.

What is the difference between pragma EXCEPTION_INIT and RAISE_APPLICATION_ERROR?

EXCEPTION_INIT is helps to assign a error number to the exception and which can be raised using RAISE and can be handled in EXCEPTION block. RAISE_APPLICATION_ERROR is used to return a valid error message to the calling application like Java, .

What is pragma EXCEPTION_INIT in Oracle?

The pragma EXCEPTION_INIT associates an exception name with an Oracle error number. You can intercept any ORA- error and write a specific handler for it instead of using the OTHERS handler.

How do I reset Oracle parameters to default?

We can reset the value of a parameter with the following command. SQL> alter system reset parameter_name scope=spfile; After this process, the corresponding parameter will be completely removed from the spfile file. Even if we don’t specify a scope, the parameter will still be deleted from the spfile.

How do you set parameters?

Creating a parameter set

  1. Enter a name and short description for your parameter set.
  2. Click the Parameters tab.
  3. Click the Values tab.
  4. Enter a name in the Value File name field, then press Enter.
  5. If a default value is not already set, enter a value for each parameter.
  6. Click OK to close the Parameter Set window.

What is Optimizer_adaptive_features?

OPTIMIZER_ADAPTIVE_FEATURES enables or disables all of the adaptive optimizer features, including adaptive plan (adaptive join methods and bitmap pruning), automatic re-optimization, SQL plan directives, and adaptive distribution methods.

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