Answer Posted / nitin umale

SELECT *
FROM employees
WHERE salary =
( SELECT MIN ( r.salary)
FROM ( SELECT salary
FROM ( SELECT DISTINCT salary
FROM employees
ORDER BY NVL(salary,0) DESC
)
WHERE rownum<3) r
);

Can we write ddl statements in functions?

1117

---

How to use sql*plus built-in timers?

1202

---

What normalization means?

979

---

create or replace procedure search_matter(empno varchar2) as sql_stmt varchar2(200); stmt varchar2(200); v_table_name varchar2(200); val_pres number; inp_value varchar2(200); type obj_typ is table of cols.column_name%type index by binary_integer; type all_col is table of varchar2(100) index by binary_integer; typ_obj_typ obj_typ; typ_all_col all_col; begin select object_name bulk collect into typ_obj_typ from user_tables,user_objects where table_name = object_name AND object_type = 'TABLE'; select empno into inp_value from dual; dbms_output.put_line('inp value : '||inp_value); for i in typ_obj_typ.first..typ_obj_typ.last loop v_table_name := NULL; v_table_name := typ_obj_typ(i); dbms_output.put_line(i||':'||typ_obj_typ(i)); dbms_output.put_line('....................'); sql_stmt := 'select column_name from cols where table_name = :1 and data_type in (''CHAR'', ''VARCHAR2'', ''NCHAR'', ''NVARCHAR2'',''NUMBER'')'; EXECUTE IMMEDIATE sql_stmt bulk collect into typ_all_col using typ_obj_typ(i); for inside in typ_all_col.first..typ_all_col.last loop dbms_output.put_line('sql stmt: '||sql_stmt); dbms_output.put_line('column name: '||typ_all_col(inside)||'table name: '||typ_obj_typ(i)); stmt := 'select count(*) from ||typ_obj_typ(i)||'; EXECUTE_IMMEDIATE stmt into val_pres ; if val_pres = 1 then dbms_output.put_line('value present col name: '||typ_all_col(inside)||'table name :'||typ_obj_typ(i)); end if; end loop; dbms_output.put_line('....................'); end loop; exception when others then dbms_output.put_line('sql code '||sqlcode||'Table name: '||v_table_name); dbms_output.put_line('sql message '||sqlerrm); end; Compile-time I am getting below error, Plz help to resolve. LINE/COL ERROR -------- ----------------------------------------------------------------- 47/23 PLS-00103: Encountered the symbol "STMT" when expecting one of the following: := . ( @ % ;

1001

---

How do I quit sql?

963

---

Does view contain data?

1037

---

What is dynamic query?

977

---

What is a pragma statement?

1263

---

what is oltp (online transaction processing)? : Sql dba

1078

---

how to dump a table to a file with 'mysqldump'? : Sql dba

1036

---

What are the advantages of normalization?

1078

---

Is sqlite good enough for production?

993

---

What are the string functions in sql?

977

---

What action do you have to perform before retrieving data from the next result set of a stored procedure ?

2571

---

What is pl sql and why it is used for?

1113

---