isql错误无法在listagg上执行sqlExecute

Question

我正在尝试在连接到oracle DB的iSQL中执行LISTAGG。

以下查询运行正常并返回106个结果。

SELECT DISTINCT owner FROM dba_segments WHERE owner NOT IN ('SYS', 'SYSTEM', 'EXFSYS', 'DBSNMP', 'SQLTXPLAIN', 'XDB', 'WMSYS', 'PERFSTAT', 'OUTLN');

尝试LISTAGG我收到以下错误：

方法1：

SELECT LISTAGG(DISTINCT owner, ', ') WITHIN GROUP (ORDER BY owner) FROM dba_segments WHERE owner NOT IN ('SYS', 'SYSTEM', 'EXFSYS', 'DBSNMP', 'SQLTXPLAIN', 'XDB', 'WMSYS', 'PERFSTAT', 'OUTLN');

返回：

[ISQL]ERROR: Could not SQLExecute

方法2：

SELECT LISTAGG(owner, ', ') WITHIN GROUP (ORDER BY owner) FROM (SELECT DISTINCT owner FROM dba_segments WHERE owner NOT IN ('SYS', 'SYSTEM', 'EXFSYS', 'DBSNMP', 'SQLTXPLAIN', 'XDB', 'WMSYS', 'PERFSTAT', 'OUTLN'));

返回：

LISTAGG(OWNER,',')WITHINGROUP(ORDERBYOWNER)

像LISTAGG这样的函数甚至可以使用ODBC连接到Oracle，从iSQL开始工作。

编辑 - 我发现以下内容看起来不允许？ Allowed Functions

Oracle Database Gateway for ODBC assumes that ODBC driver provider that is being used supports the following minimum set of SQL functions:

AVG(exp)
LIKE(exp)
COUNT(*)
MAX(exp)
MIN(exp)
NOT

Answer 1

根据我在quesiton中的注释，isql无法访问Oracle中的系统函数。