Please let me know if UNION ALL and Natural Join does the
same operation and are same...

Answer Posted / brahma

both are return same result

Is This Answer Correct ?    4 Yes 13 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is 'mysqladmin' in mysql? : Sql dba

534


what is the use of anchoring object? what r the difference between anchoring object & enclosing object? can any one tell me all the details?

2009


how can you see all indexes defined for a table? : Sql dba

539


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: := . ( @ % ;

605


How do you change a value in sql?

556






What is the difference between syntax error and runtime error?

614


how do you control the max size of a heap table? : Sql dba

538


Why triggers are used?

557


What is the difference between row level and statement level trigger?

523


How does rowid help in running a query faster?

970


What is a sql*loader control file?

622


Explain the the update statement in sql?

573


What program will open a mdb file?

503


What is pl/sql table? Why is it used?

561


Does a user_objects view have an entry for a trigger?

570