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The Oracle INSTR() function searches for a substring in a string and returns the position of the substring in a string. Syntax. The following illustrates the syntax of the Oracle INSTR() function: INSTR(string , substring [, start_position [, occurrence]]) Code language: SQL (Structured Query Language) (sql) Arguments
The INSTR functions search string for substring. The search operation is defined as comparing the substring argument with substrings of string of the same length for equality until a match is found or there are no more substrings left.
This Oracle tutorial explains how to use the Oracle/PLSQL INSTR function with syntax and examples. The Oracle/PLSQL INSTR function returns the location of a substring in a string. The syntax for the INSTR function in Oracle/PLSQL is: The string to search. string can be CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB.
Using a combination of SUBSTR, INSTR, and NVL (for strings without an underscore) will return what you want: SELECT NVL(SUBSTR('ABC_blah', 0, INSTR('ABC_blah', '_')-1), 'ABC_blah') AS output FROM DUAL
INSTR is one of the vital string/char functions of Oracle. It is used to get the location of a substring, where a substring is a part of a string. The INSTR function is supported in the various versions of the Oracle/PLSQL, including, Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i and Oracle 8i.
7 Αυγ 2024 · The Oracle INSTR function is a SQL function used to search for a specific substring within a given string and return the position where this substring first appears. If the substring is not found, the function returns zero.
6 Αυγ 2021 · In Oracle, the INSTR() function searches for a substring in a given string, and returns an integer indicating the position of the first character of this substring. If the substring isn’t found, the function returns 0. INSTR() requires at least two arguments; the string, and the substring.
