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Category: DBMS

Database Management Systems

Get the Current Login ID in SQL Server (T-SQL)

Posted on September 3, 2021 by Ian

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.

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SQL Server how to, mssql, security, t-sql

List of NLS Parameters in Oracle Database

Posted on September 2, 2021 by Ian

Below is a full list of NLS parameters in Oracle Database, along with their default values, and scopes that each parameter is available in.

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Oracle reference

MariaDB RTRIM() vs RTRIM_ORACLE(): What’s the Difference?

Posted on September 2, 2021 by Ian

MariaDB has an RTRIM() function and a RTRIM_ORACLE() function. Both functions do essentially the same thing. But there is a minor difference.

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MariaDB functions, string functions, what is

2 Functions that Return the Month from a Date in Oracle

Posted on September 1, 2021 by Ian

Below are two functions that can be used to extract the month from a date in Oracle Database.

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Oracle date format, date functions, dates, how to

TO_CHAR(number) Function in Oracle

Posted on September 1, 2021September 5, 2021 by Ian

In Oracle Database, the TO_CHAR(number) function converts a number to a VARCHAR2 value in the format specified by the format argument.

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Oracle conversion functions, functions, numeric functions, what is

List of Number Format Elements in Oracle

Posted on August 31, 2021 by Ian

Below is a full list of the format elements that can be used to format numbers in Oracle Database.

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Oracle number format, reference

6 Ways to Check your MariaDB Version

Posted on August 31, 2021 by Ian

Here are six ways to check what version of MariaDB you’re currently running.

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MariaDB how to, show version

Find Out Which Quarter a Date Belongs to in Oracle

Posted on August 31, 2021 by Ian

When using the TO_CHAR(datetime) function in Oracle Database, you can use the Q format element to return the quarter that a given date belongs to.

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Oracle date format, dates, how to

List of Languages Supported by Oracle Database

Posted on August 30, 2021 by Ian

The following table contains a list of territories that are supported by Oracle Database.

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Oracle reference

WEEKDAY() vs DAYOFWEEK() in MariaDB: What’s the Difference?

Posted on August 30, 2021 by Ian

MariaDB provides a WEEKDAY() function and a DAYOFWEEK() function, both of which return the day of the week, represented as a number.

But the number returned is different between these functions.

This post looks at the difference.

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MariaDB date functions, functions
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