In Oracle Database, the COMPOSE() function returns the result of applying the Unicode canonical composition, as described in the Unicode Standard definition D117, to its string argument.
It’s the opposite of the DECOMPOSE() function.
Category: DBMS
Database Management Systems
5 Functions to Extract the Week Number from a Date in MariaDB
Below are 5 functions that enable you to return the week number from a date in MariaDB. Four return just the week, and one returns both the week and year combined.
Continue readingCAST() Function in Oracle
In Oracle Database, the CAST() function converts its argument to a different data type.
More specifically, it lets you convert built-in data types or collection-typed values of one type into another built-in data type or collection type.
Continue readingHow to Change your Session’s Currency Symbol in Oracle
In Oracle Database, there are a few different NLS parameters that determine how currency is displayed when using functions like TO_CHAR() to format a number as a currency.
NLS_CURRENCYspecifies the string to use as the local currency symbol for theLnumber format element.NLS_ISO_CURRENCYdetermines what to use for theCformat element.NLS_DUAL_CURRENCYspecifies what to use for theUformat element.
Get the Current Login ID in SQL Server (T-SQL)
You can use the SUSER_ID() function to return the login identification number of the current user.
You can also use it to return the login ID of another user.
This is similar to returning the current login name, except here we’re returning the ID instead.
Continue readingList of NLS Parameters in Oracle Database
Below is a full list of NLS parameters in Oracle Database, along with their default values, and scopes that each parameter is available in.
Continue readingMariaDB RTRIM() vs RTRIM_ORACLE(): What’s the Difference?
MariaDB has an RTRIM() function and a RTRIM_ORACLE() function. Both functions do essentially the same thing. But there is a minor difference.
2 Functions that Return the Month from a Date in Oracle
Below are two functions that can be used to extract the month from a date in Oracle Database.
Continue readingTO_CHAR(number) Function in Oracle
In Oracle Database, the TO_CHAR(number) function converts a number to a VARCHAR2 value in the format specified by the format argument.
List of Number Format Elements in Oracle
Below is a full list of the format elements that can be used to format numbers in Oracle Database.
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