OBIEE11g: Error "ORA-24920:column size too large for client at OCI call OCIStmtFetch" after extended varchar2 to 32767 byte (Doc ID 2145068.1)

Last updated on NOVEMBER 16, 2022

Applies to:

Symptoms

Oracle Database 12c has a new feature MAX_STRING_SIZE that could increase the maximum size of VARCHAR2 and that of NVARCHAR2 Database column to 32767 bytes.

• About MAX_STRING_SIZE in Oracle Database 12c, please refer oracle database document. MAX_STRING_SIZE

OBIEE 11g connects to Oracle Database 12c as a datasource; the following error returned when fetching the column whose size has been extended to 32767 bytes against Oracle Database 12c.

Error Codes: OPR4ONWY:U9IM8TAC:OI2DL65P
State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000] [nQSError: 10058] A general error has occurred. [nQSError: 43113] Message returned from OBIS. [nQSError: 17001] Oracle Error code: 24920, message: ORA-24920: column size too large for client at OCI call OCIStmtFetch. [nQSError: 17012] Bulk fetch failed. (HY000) SQL Issued: SELECT 0 s_0, "SYSTEM"."TEST_TABLE"."EXTENDED_VARCHAR" s_1, "SYSTEM"."TEST_TABLE2"."E2" s_2 FROM "SYSTEM" FETCH FIRST 65001 ROWS ONLY

Changes

1. Extended max_string_size to 32767 bytes on Oracle Database 12c.

2. Change the column length more than 4000 bytes in the physical layer in OBIEE 11g repository.

Cause

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