select column_name,table_name from user_tab_columns where regexp_like(column_name,'[a-z]'); 

                        java.lang.IllegalArgumentException: obj is null

WITH indexInfo as (
    SELECT SCHEMA_NAME(t.schema_id) [schema_name],t.name as [table_name],t1.name as [index_name]
    ,t1.type,t1.type_desc,t1.is_unique,t1.is_primary_key,t1.is_unique_constraint,t1.has_filter,t1.filter_definition
    ,STUFF((SELECT ','+t4.name FROM sys.sysindexkeys t2 
        inner join sys.index_columns  t3 ON t2.id=t3.object_id and t2.indid=t3.index_id and t2.colid=t3.column_id
        inner join sys.syscolumns t4 ON t2.id=t4.id and t2.colid=t4.colid
        WHERE t2.id=t1.object_id and t1.index_id=t2.indid  and t2.keyno <> 0 ORDER BY t3.key_ordinal FOR XML PATH('')),1,1,'') AS index_cols
    ,STUFF((SELECT ','+t4.name FROM sys.sysindexkeys t2 
        inner join sys.index_columns  t3 ON t2.id=t3.object_id and t2.indid=t3.index_id and t2.colid=t3.column_id
        inner join sys.syscolumns t4 ON t2.id=t4.id and t2.colid=t4.colid
        WHERE t2.id=t1.object_id and t1.index_id=t2.indid  and t2.keyno = 0 ORDER BY t3.key_ordinal FOR XML PATH('')),1,1,'')  AS include_cols
    FROM sys.tables as t
    inner join sys.indexes as t1 on (t1.index_id > 0 and t1.is_hypothetical = 0) and (t1.object_id=t.object_id)
    WHERE t1.type in(1,2)
), indexInfo2 AS (
SELECT * ,(CASE 
    WHEN is_primary_key = 1 
        THEN 'alter table '+[schema_name]+'.'+[table_name]+' add constraint '+[index_name]+' primary key '+(CASE WHEN [type]=1 THEN 'clustered' ELSE 'nonclustered' END)+'('+index_cols+');'
    WHEN is_unique = 1 AND is_unique_constraint = 1 
        THEN 'alter table '+[schema_name]+'.'+[table_name]+' add constraint '+[index_name]+' unique '+(CASE WHEN [type]=1 THEN 'clustered' ELSE 'nonclustered' END)+'('+index_cols+');'
    WHEN is_unique = 1 AND (is_primary_key = 0 OR is_unique_constraint = 0)
        THEN 'create unique '+(CASE WHEN [type]=1 THEN 'clustered' ELSE 'nonclustered' END)+' index '+[index_name]+'  on '+[schema_name]+'.'+[table_name]+'('+index_cols+');'
    ELSE 'create '+(CASE WHEN [type]=1 THEN 'clustered' ELSE 'nonclustered' END)+' index '+[index_name]+' on '+[schema_name]+'.'+[table_name]+'('+index_cols+') ;'
    END) script
FROM indexInfo
) SELECT [schema_name],[table_name],[index_name],script
+(CASE WHEN include_cols IS NOT NULL THEN ' include('+include_cols+')' ELSE '' END)
+(CASE WHEN has_filter = 1THEN ' where '+filter_definition ELSE '' END)
FROM indexInfo2
ORDER BY [schema_name],[table_name],[type],[index_name],is_primary_key DESC,is_unique_constraint DESC,is_unique DESC