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RAWTOHEX() Function in Oracle

September 6, 2021 by Ian

In Oracle Database, the RAWTOHEX() function converts a raw value to hexadecimal.

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Categories Oracle Tags conversion functions, functions, what is

HEXTORAW() Function in Oracle

September 6, 2021 by Ian

In Oracle Database, the HEXTORAW() function converts hexadecimal to a raw value.

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Categories Oracle Tags conversion functions, functions, what is

DECOMPOSE() Function in Oracle

September 5, 2021 by Ian

In Oracle Database, the DECOMPOSE() function returns the result of applying one of the Unicode decompositions to its string argument. The decomposition is determined by the second (optional) argument.

It’s the opposite of the COMPOSE() function.

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Categories Oracle Tags conversion functions, functions, what is

COMPOSE() Function in Oracle

September 5, 2021 by Ian

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.

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Categories Oracle Tags conversion functions, functions, what is

CAST() Function in Oracle

September 4, 2021 by Ian

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.

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Categories Oracle Tags conversion functions, functions, what is

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

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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Categories MariaDB Tags functions, string functions, what is

TO_CHAR(number) Function in Oracle

September 5, 2021September 1, 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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Categories Oracle Tags conversion functions, functions, numeric functions, what is

BIN_TO_NUM() Function in Oracle

August 28, 2021 by Ian

In Oracle Database, the BIT_TO_NUM() function converts a bit vector to its equivalent number.

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Categories Oracle Tags conversion functions, functions, what is

ASCIISTR() Function in Oracle

August 27, 2021 by Ian

In Oracle Database, the ASCIISTR() function returns an ASCII version of the given string in the database character set. 

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Categories Oracle Tags conversion functions, functions, what is

TRUNC(date) Function in Oracle

August 25, 2021 by Ian

In Oracle Database, the TRUNC(date) function returns the given date value with the time portion of the day truncated to the unit provided in the specified format model.

Oracle also has a TRUNC(number) syntax, which is used on numbers. This article is solely about the TRUNC(date) syntax, which is used on dates.

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Categories Oracle Tags date functions, functions, what is
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