Updated: Nov 2009 for SQL Developer 2.11. Introduction Oracle SQL Developer provides a SQL Worksheet that you can use to update data, by writing simple or complex SQL statements. In this How-To, we look at the
Step 1: Use the desktop icon to launch Oracle SQL Developer. Step 2: Select the Connections option under View. Step 3: Right-click Connections in the Connections tab and choose New Connection. You’ll see a window asking you to choose a new database connection. Step 4: Fill in the corr...
In general, only application designers using the programming interfaces to Oracle Database are concerned with which types of actions should be grouped together as one transaction. Transactions must be defined properly so that work is accomplished in logical units and data is kept consistent. A transa...
There are no built-in functions to convert intervals directly into one unit such as hours or minutes. This makes calculating bucket numbers from intervals fiddly. Simplify this so you’re working with numbers by casting timestamps to dates first. With the difference between the datetimes and th...
B-trees don't have this luxury. You can't just plonk one on top of the other to find what you're looking for. While Oracle Database can combine B-trees (via a "bitmap conversion from rowids"), this is relatively expensive. In general to get the same performance as the three ...
If you are working on Oracle database either as developer or DBA, you need a good front-end to manage your database. In the old days, one of the popular option was Toad. But, now, there is even a better and robust option; SQL Developer. SQL Developer is
In this method, you can convert your Oracle data to a CSV file using SQL plus and then transform it according to the compatibility. You then can stage the files in S3 and ultimately load them into Snowflake using the COPY command. This method can be time taking and can lead to data in...
I want to do the exact same thing in Oracle using SQL Developer without additional complexity. It seems like a very simple thing to do, but I can't find a simple solution. How can I do it? You can read up elsewhere on substitution variables; they're quite handy in SQL Developer. But...
I want to spend some time in the next few weeks helping the beginners out there. I can’t think of a better place to start than with how to ‘install’ SQL Developer. I’ve been telling anyone who will listen than you can get up and running with SQL Developer in under 5 minut...
Get the Oracle Cheat Sheet Get The Cheat Sheet Converting to a String in Oracle SQL As with the NUMBER data type, there are two ways to convert a value to a string data type. The main string data types in Oracle are: CHAR NCHAR ...