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29 cze 2015 · There are two ways to concatenate Strings in Oracle SQL. Either using CONCAT function or || operator. CONCAT function allows you to concatenate two strings together. SELECT CONCAT( string1, string2 ) FROM dual; Since CONCAT function will only allow you to concatenate two values together.
CONCAT is one of the vital string/char functions of Oracle. It is used to concatenate two strings together. The CONCAT function is supported in the various versions of the Oracle/PLSQL, including, Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i and Oracle 8i.
In this tutorial, you have learned how to use the Oracle CONCAT() function to concatenate two strings. You also learned how to use the concatenation operator (||) that concatenates three or more strings.
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.
Concatenate two strings and return the combined string. Convert a character string from one character set to another. Return a string value (VARCHAR2) that includes the datatype code, length measured in bytes, and internal representation of a specified expression.
CONCAT returns char1 concatenated with char2. Both char1 and char2 can be any of the data types CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB. The string returned is in the same character set as char1. Its data type depends on the data types of the arguments.
CONCAT takes as input two or more arguments and returns the concatenation of all arguments. The arguments can be any of the data types CHAR , VARCHAR2 , NCHAR , NVARCHAR2 , CLOB , or NCLOB . Arguments of other data types are implicitly converted to VARCHAR2 before concatenation.
