问题
How to increase buffer size in Oracle SQL Developer to view all records (there seems to be a certain limit set at default)? Any screen shots and/or tips will be very helpful.
回答1:
https://forums.oracle.com/forums/thread.jspa?threadID=447344
The pertinent section reads:
There's no setting to fetch all records. You wouldn't like SQL Developer to fetch for minutes on big tables anyway. If, for 1 specific table, you want to fetch all records, you can do Control-End in the results pane to go to the last record. You could time the fetching time yourself, but that will vary on the network speed and congestion, the program (SQL*Plus will be quicker than SQL Dev because it's more simple), etc.
There is also a button on the toolbar which is a "Fetch All" button.
FWIW Be careful retrieving all records, for a very large recordset it could cause you to have all sorts of memory issues etc.
As far as I know, SQL Developer uses JDBC behind the scenes to fetch the records and the limit is set by the JDBC setMaxRows() procedure, if you could alter this (it would prob be unsupported) then you might be able to change the SQL Developer behaviour.
回答2:
Select Tools > Preferences > Database / Advanced
There is an input field for Sql Array Fetch Size but it only allows setting a max of 500 rows.
回答3:
If you are running a script, instead of a statement, you can increase this by selecting Tools/Preferences/Worksheet and increasing "Max Rows to print in a script". The default is 5000, you can change it to any size.
回答4:
You can also edit the preferences file by hand to set the Array Fetch Size to any value.
Mine is found at C:\Users\<user>\AppData\Roaming\SQL Developer\system4.0.2.15.21\o.sqldeveloper.12.2.0.15.21\product-preferences.xml on Win 7 (x64).
The value is on line 372 for me and reads <value n="ARRAYFETCHSIZE" v="200"/>
I have changed it to 2000 and it works for me.
I had to restart SQL Developer.
回答5:
It is easy, but takes 3 steps:
- In SQL Developer, enter your query in the "Worksheet" and highlight it, and press F9 to run it. The first 50 rows will be fetched into the "Query Result" window.
- Click on any cell in the "Query Result" window to set the focus to that window.
- Hold the Ctrl key and tap the "A" key.
All rows will be fetched into the "Query Result" window!
回答6:
press f5 for running queries instead of f9. It will give you all the results in one go...
回答7:
Tools-> Preferences -> Database ->Worksheet
Enter desired size in "Max rows to print in a script"
Save changes.
回答8:
after you retrieve the first 50 rows in the query windows, simply click a column to get focus on the query window, then once selected do ctrl + pagedown
This will load the full result set (all rows)
回答9:
Here is another cheat:
Limit your query if you don't really need all the rows. i.e.
WHERE rownum <= 10000
Then click on any cell of the results and do from your keyboard CTRL+END. This will force SQL Developer to scroll until the bottom result of your query.
This has the advantage of keeping the default behavior and use this on demand.
来源：https://stackoverflow.com/questions/8842577/how-to-increase-buffer-size-in-oracle-sql-developer-to-view-all-records