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DML Reference, 10g Release 1 (10.1)

INSTR

INSTRThe INSTR function searches a string for a substring using characters and returns the position in … the string that is the first character of a specified occurrence of the substring. INSTR calculates … using bytes, use INSTR. Return Value A nonzero INTEGER when the search is successful or 0 (zero) when … it is not. Syntax INSTR

SQL Reference, 10g Release 1 (10.1)

INSTR

INSTRSyntax instr::= Description of the illustration instr.gif Purpose The INSTR functions search string … that is the first character of this occurrence. INSTR calculates strings using characters as defined … which the second occurrence of " OR " begins: SELECT INSTR('CORPORATE FLOOR','OR', 3, 2) "Instring … character

DML Reference, 10g Release 1 (10.1)

INSTR

stringINSTR counts and searches backward from the end of string. The default value of position is 1, which … the position in "Corporate Floor" at which the second occurrence of "or" begins. SHOW INSTR … that this second occurrence begins with the second character in the search string. SHOW INSTR('Corporate Floor','or', -3, 2) 2

Packages and Types Reference, 10g Release 1 (10.1)

45 DBMS_LOB

INSTR FunctionThis function returns the matching position of the nth occurrence of the pattern in the LOB, starting from the offset you specify.

Packages and Types Reference, 10g Release 1 (10.1)

45 DBMS_LOB

Pragmaspragma restrict_references(INSTR, WNDS, WNPS, RNDS, RNPS);

Error Messages, 10g Release 1 (10.1)

16 ORA-29250 to ORA-32775

ORA-32766: instr with negative offset: use varchar semantics on LOBsCause: None Action: Facilitate debugging and testing ORA-32766: instr with negative offset: use varchar semantics on LOBs

Globalization Support Guide, 10g Release 1 (10.1)

What's New in Globalization Support?

Regular Expressions, REPLACE, and INSTR. This implementation supports multilingual queries and is locale-sensitive. See

DML Reference, 10g Release 1 (10.1)

15 INF_STOP_ON_ERROR to LIKEESCAPE

15 INF_STOP_ON_ERROR to LIKEESCAPEINSTAT INSTR INSTRB INTPART IRR ISDATE ISVALUE JOINBYTES JOINCHARS JOINCOLS JOINLINES KEY LAG LAGABSPCT

Packages and Types Reference, 10g Release 1 (10.1)

45 DBMS_LOB

Return ValuesTable 45-36 INSTR Function Return Values Return Description INTEGER Offset of the start of the

Application Developer's Guide - Large Objects, 10g Release 1 (10.1)

9 SQL Semantics and LOBs

UNICODE SupportVariations on the INSTR, SUBSTR, LENGTH, and LIKE functions are provided for Unicode support

Globalization Support Guide, 10g Release 1 (10.1)

7 Programming with Unicode

Other SQL Functionsthe customer table created in "SQL Functions for Unicode Datatypes". Example 7-4 INSTR Function … SELECT INSTR(name, N'Sm', 1, 1) FROM customers; Example 7-5 CONCAT Function SELECT CONCAT(name,id) FROM

Oracle® XML Developer's Kit Programmer's Guide, 10g Release 1 (10.1)

24 XSU for PL/SQL

XSU Generating XML Example 2: Printing CLOB to Output Buffer:= dbms_lob.SUBSTR(result,32767); loop exit when xmlstr is ; line:= substr(xmlstr,1,instr(xmlstr,chr(10 … ))-1); dbms_output.put_line('| '||line); xmlstr:= substr(xmlstr,instr(xmlstr,chr(10))+1); end loop; end;

DML Reference, 10g Release 1 (10.1)

INSTRB

INSTRBsubstring using characters, use INSTR. Return Value A nonzero INTEGER when the search is successful or

Application Developer's Guide - Large Objects, 10g Release 1 (10.1)

13 Data Interface for Persistent LOBs

Passing CLOBs to SQL and PL/SQL Built-In Functionsdata. For example, INSTR can accept a CLOB as well as other character data. Any SQL or PL/SQL built-in

Packages and Types Reference, 10g Release 1 (10.1)

45 DBMS_LOB

ExceptionsTable 45-37 INSTR Function Exceptions for BFILES Exception Description UNOPENED_FILE File was not

Application Developer's Guide - Large Objects, 10g Release 1 (10.1)

9 SQL Semantics and LOBs

WHERE Clause Usage with LOBs* from t where substr(c, 1, 2) like '%b%'; select * from t where instr(c, 'b') = 2;

Packages and Types Reference, 10g Release 1 (10.1)

45 DBMS_LOB

ParametersTable 45-35 INSTR Function Parameters Parameter Description lob_loc Locator for the LOB to be

Packages and Types Reference, 10g Release 1 (10.1)

45 DBMS_LOB

Usage Notesto succeed. Operations that accept RAW or VARCHAR2 parameters for pattern matching, such as INSTR, do

Globalization Support Guide, 10g Release 1 (10.1)

9 SQL and PL/SQL Programming in a Global Environment

SQL Functions for Different Length Semanticsthree groups of such SQL functions: SUBSTR, LENGTH, and INSTR. Each function in a group is based on a … requested portion of a substring. The LENGTH functions return the length of a string. The INSTR functions … characters and composed characters are counted as one character. The LENGTH and INSTR functions calculate … Also: Oracle

Application Developer's Guide - Large Objects, 10g Release 1 (10.1)

A LOB Demonstration Files

Java LOB Demonstration Filesif a pattern exists in a BFILE using instr Checking If a Pattern Exists in a BFILE Using INSTR … Initializing a LOB Locator Bind Variable linstr.java Seeing if pattern exists in LOB (instr) Patterns … : Checking for Patterns in a LOB Using INSTR lisopen.java Seeing if LOB is open Determining Whether a


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