In Oracle Database, when using the TO_CHAR() function to return the day name from a date, padding will be appended to the day name if it’s shorter than the longest valid day name for the given language and calendar.
Well, that’s the default behaviour. However, you can change this if you wish.
To suppress this padding, all you need to do is prepend the day name format element with fm.
Here are four options for returning rows that contain lowercase characters in Oracle Database.
Oracle Database includes several views that contain information about triggers in the database. We can use these views to return a list of triggers.
The following examples return only those rows that have numeric values in a given column in Oracle Database.
These examples use the REGEXP_LIKE function to return values that match the specified pattern.
Here are two ways you can use SQLcl or SQL*Plus to check your Oracle Database compatibility level.
Here are several ways to get a list of functions in Oracle Database.
In Oracle Database, we can use the TH format element to add the ordinal number suffix to the result of a TO_CHAR() operation when formatting dates.
For example, instead of outputting 10 Feb we could output 10th Feb. Or, instead of outputting 21 century, we can output 21st century. The same applies for spelled date components. For example, instead of Twenty One, we can output Twenty First.
In Oracle Database, the following NLS parameters can be used to determine how currencies are displayed for the current session:
NLS_CURRENCY specifies the string to use as the local currency symbol for the L number format element. NLS_ISO_CURRENCY determines what to use for the C format element.NLS_DUAL_CURRENCY specifies what to use for the U format element.The default value for these is determined by the NLS_TERRITORY parameter.
The L, C, and U number format elements can be used in functions like TO_CHAR() to format a number as a currency.
Oracle Database includes a good selection of datetime format elements. that enable us to format dates and times when using the TO_CHAR(datetime) function.
One of these (the YEAR format element) allows us to format a date with the year spelled out. For example, instead of 1972, we’d get NINETEEN SEVENTY-TWO.
We can also use SYEAR so that BC dates are prefixed with a minus sign (-).
Below are three ways to return time zone information from a datetime value in Oracle Database.