![]() ![]() If the string is CHAR type, trailing spaces are removed and then the value is removed. Therefore, fullwidth characters are handled using a width of 2, and halfwidth characters are handled using a width of 1. The result length is based on the width of the displayed string. If the string is CHAR type, the value is padded without removing trailing spaces. The result length is handled as a number of characters. ![]() If the string is CHAR type, trailing spaces are removed and then the value is padded. If a negative value is specified for the start position, extraction will start from the position counted from the end of the string. If 0 is specified for the start position, extraction will start from the beginning of the string. If 0 or a negative value is specified for the start position, simply subtracting 1 from the start position, the position will be shifted to the left, from where extraction will start. If the string is CHAR type, trailing spaces are included in the length. If the string is CHAR type, trailing spaces are not included in the length. In the default configuration of PostgreSQL, the standard features of PostgreSQL take precedence.įeatures implemented in PostgreSQL and orafce using different external specifications The following features provided by orafce are implemented in PostgreSQL and orafce using different external specifications. Orafce is defined as user-defined functions in the “public” schema created by default when database clusters are created, so they can be available for all users without the need for special settings.įor this reason, ensure that “public” (without the double quotation marks) is included in the list of schema search paths specified in the search_path parameter. Validates the properties of an input valueĬreates a pipe for inter-session communication Functions that return internal information.Returns a concatenated, delimited list of string values ![]() Returns a substitute value based on whether a value is NULL or not NULL Returns a substitute value when a value is NULL Returns a substitute value when a value is not a number (NaN) Returns the date of the first instance of a particular day of the week that follows the specified dateĬonverts a string to a date in accordance with the specified formatĬonverts a single-byte string to a multibyte stringĬonverts a value to a number in accordance with the specified formatĬonverts a multibyte string to a single-byte stringĬompares values, and if they match, returns a corresponding value Returns the number of months between two dates Returns the last day of the month in which the specified date falls Returns the value of the database time zone Removes the specified characters from the end of a stringĮxtracts part of a string using characters to specify position and lengthĮxtracts part of a string using bytes to specify position and length Right-pads a string to a specified length with a sequence of characters Returns a byte string used to sort strings in linguistic sort sequence based on locale Removes the specified characters from the beginning of a string Left-pads a string to a specified length with a sequence of characters Returns the length of a string in number of bytes Returns the length of a string in number of characters Returns the position of a substring in a string Variable-length national character data typeĬalculates the hyperbolic cosine of a numberĬalculates the hyperbolic sine of a numberĬalculates the hyperbolic tangent of a number 1.1 Features compatible with Oracle databases ![]() The table below lists features compatible with Oracle databases. These features enable you to easily migrate to PostgreSQL and reduce the costs of reconfiguring applications. Chapter 1 Overviewįeatures compatible with Oracle databases are provided. This documentation describes the environment settings and functionality offered for features that are compatible with Oracle databases. Navigation Orafce Documentation Orafce - Oracle’s compatibility functions and packages ![]()
0 Comments
Leave a Reply. |