Answer Posted / slokh

Primary key does not contain NULL or duplicate values.
whereas Foreign key accepts duplicate values but not null
values.
Primary key states the Entity integrity constraint, which
says that every row in a table is unique.
Foreign key states the referential integrity constraint,
that says that you can only insert values that is present
in the primary of the parent table.

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: := . ( @ % ;

601

---

What is an intersect?

655

---

Explain how to use transactions efficiently : transact sql

529

---

write an sql query to get third maximum salary of an employee from a table named employee_table. : Sql dba

542

---

How to load data with sql*loader?

550

---

---

What is the command used to fetch the first 5 characters of a string?

708

---

Explain what is sql*plus?

670

---

Which is faster view or stored procedure?

505

---

How do I remove all records from a table?

566

---

how to use 'mysql' to run sql statements? : Sql dba

539

---

what are all the common sql function? : Sql dba

585

---

What is sql indexing?

555

---

What is a pdo connection?

515

---

How do I audit the sql sent to the server?

525

---

What is sql query limit?

510

---