- How do I set up Serveroutput?
- How many tables can you join in SQL?
- How do I save a spool in Oracle?
- What is the use of spool command in SQL?
- What is spool printing?
- How do I import data into SQL Developer?
- Can we use spool in PL SQL?
- Where are Oracle spools stored?
- What is spooling in database?
- What is a spool used for?
- Can we use spool in procedure?
- How do I extract data from SQL Developer?
- What is Utl_file in Oracle with example?
- What is Sqlplus command?
- Where are spool files stored?
- Can we execute queries parallely from different session?
- How do I automatically export data from SQL Developer to excel?
- What is spool file?
- How do I extract data from SQL to Excel?
How do I set up Serveroutput?
Click on Icon Green Plus and select your schema.
Run your sp now.
SET SERVEROUTPUT ON; BEGIN FOR rec in (SELECT * FROM EMPLOYEES) LOOP DBMS_OUTPUT.
How many tables can you join in SQL?
two tablesIn SQL Server, you can join more than two tables in either of two ways: by using a nested JOIN , or by using a WHERE clause.
How do I save a spool in Oracle?
Export Query Results to a Text File using Spool spool ‘Path where you’d like to store the exported file\your_file_name. txt’; SELECT * FROM schema. table WHERE condition; spool off; And as before, don’t forget to press F5 in order to run the Spool and then generate the file at your specified path.
What is the use of spool command in SQL?
The “spool” command is used within SQL*Plus to direct the output of any query to a server-side flat file. Becuse the spool command interfaces with the OS layer, the spool command is commonly used within Oracle shell scripts.
What is spool printing?
Spool Printing allows print jobs transferred from a computer to be temporarily stored, and then prints them after they are transferred. This shortens printing time as it maximizes printer efficiency. With Spool Printing, the print data is saved in the hard disk before printing.
How do I import data into SQL Developer?
2 AnswersCreate a connection to the database in SQL Developer.right click on tables folder.Choose Import data.select xls.use the wizzard (provide table name, row limit, select columns, datatype per column)Finish.
Can we use spool in PL SQL?
If you tried to create such a procedure, you’ll get an error because SPOOL is a SQL*Plus command not a PL/SQL command. Embedding SQL*Plus commands inside a PL/SQL block is not syntactically valid.
Where are Oracle spools stored?
Spool is a client activity, not a server one; the . lst file will be created on the machine that SQL Developer is on, not the server where the database it’s connecting to resides. You can spool to a specific directory, e.g. spool c:\windows\temp\test.
What is spooling in database?
In computing, spooling is a specialized form of multi-programming for the purpose of copying data between different devices. In contemporary systems, it is usually used for mediating between a computer application and a slow peripheral, such as a printer. … Spooling is a combination of buffering and queueing.
What is a spool used for?
Spool may refer to: Bobbin, a cylinder or reel on which a quantity of thread, yarn or wire is wound for use in a particular machine or device. Cable reel, used to carry various types of electrical wires.
Can we use spool in procedure?
You can’t use “spool” in a procedure as it is a SQL*Plus command and as Barbara told you for “describe” one in your “how to use desc inside pl sql block?” topic. You have to write yourself in a file using UTL_FILE package. Before your next question, NO SQL*Plus command can be used in a procedure.
How do I extract data from SQL Developer?
Oracle SQL Developer:Right-click the table name in the object tree view.Select Export.Select CSV. The Export Data window shows up.Click Format tab.Select Format as: CSV.Enter a file name and location.Click Columns tab.Check the columns you wish to export.More items…
What is Utl_file in Oracle with example?
Definition: In Oracle PL/SQL, UTL_FILE is an Oracle supplied package which is used for file operations (read and write) in conjunction with the underlying operating system. UTL_FILE works for both server and client machine systems. A directory has to be created on the server, which points to the target file.
What is Sqlplus command?
SQL*Plus is a command-line tool that provides access to the Oracle RDBMS. SQL*Plus enables you to: Enter SQL*Plus commands to configure the SQL*Plus environment. Startup and shutdown an Oracle database. Connect to an Oracle database.
Where are spool files stored?
Navigate to %SystemRoot%\System32\spool\PRINTERS, on most systems this will be the path C:\Windows\System32\spool\PRINTERS. Delete all flies in this directory.
Can we execute queries parallely from different session?
No, you will need a separate session per query. @Tony is correct, each query must run in it’s own session to run in parallel.
How do I automatically export data from SQL Developer to excel?
Steps to export query output to Excel in Oracle SQL DeveloperStep 1: Run your query. To start, you’ll need to run your query in SQL Developer. … Step 2: Open the Export Wizard. … Step 3: Select the Excel format and the location to export your file. … Step 4: Export the query output to Excel.
What is spool file?
Spooling is a system function that saves data in a spooled file for later processing or printing. … Spooled files can help you manage your data targeted for externally attached devices, such as a printer. A spooled file holds output data until it can be printed.
How do I extract data from SQL to Excel?
Go to “Object Explorer”, find the server database you want to export to Excel. Right-click on it and choose “Tasks” > “Export Data” to export table data in SQL. Then, the SQL Server Import and Export Wizard welcome window pop up.