Database Management Systems
In Oracle, the INITCAP() function returns its argument with the first letter of each word in uppercase, and all other letters in lowercase.
For special linguistic requirements for case conversions, you may want to try the NLS_INITCAP() function instead.
In Oracle, the NCHR() function returns the character having the binary equivalent to its argument in the national character set.
It’s the equivalent of using the CHR() function with the USING NCHAR_CS argument.
In Oracle, the CHR() function returns a character based on the code values provided as an argument.
More specifically, it returns the character having the binary equivalent to its argument as a VARCHAR2 value in either the database character set or, if you specify USING NCHAR_CS, the national character set.
In Oracle, the TRIM() function allows you to trim characters from the sides of a string.
You can trim leading characters, trailing characters, or both.
By default, it trims white space, but you can optionally specify a different character or characters to trim.
Continue readingIn Oracle, the LTRIM() function allows you to trim the left part of a string. By default, it trims white space, but you can optionally specify a different character or characters to trim.
In Oracle, the RTRIM() function allows you to trim the right part of a string. By default, it trims white space, but you can optionally specify a different character or characters to trim.
If you’re trying to run a multi-line query in SQLcl or SQL*Plus, and you keep getting an error such as “Unknown Command”, but running it in SQL Developer causes no such error, maybe this post will help.
By default, SQLcl and SQL*Plus don’t allow blank lines in SQL statements. However, you can change this with the SET SQLBLANKLINES command.
In Oracle, the SINH() function returns the hyperbolic sine of its argument.
In Oracle, the SIN() function returns the sine of its argument, where the argument is an angle expressed in radians.
This article lists the various aggregation pipeline operators that can be used to return individual date parts from a Date object in MongoDB.
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