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Databases Interview Questions
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How to create lov dynamically in oracle forms which is data comes from database procedure of out parameter, data will will out parameter of procedure base

 1 851

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: := . ( @ % ;

 585

table a has records 1,1,1,1 table b has records 1,1,1,1,1,1 what would be out if perform join for all cases

 779

Sql technical questions

 763

What is view? Can we update view

 855

What is materialized view. What are different methods of refresh?

 770

What if we write return in procedure?

 777

what is cursor. write example of it. What are the attributes of cursor.

 736

How to handle bulk data?

 881

What is the difference between Union and Union all. Which is faster.

 839

What are the steps for performance tuning.

 830

What is parallel hint?

 731

Un-Answered Questions { Databases }

What happens if you lost a data file?

567

What is the name of the Database which IBM mainframe uses?

532

How do we get field detail of a table?

611

When you use CKM?

292

How would you pass hints to the sql processor?

516




How do I declare a variable in mysql?

464

what is the difference between where clause and having clause? : Sql dba

521

What are sql servers used for?

493

How to get all stored procedures in sql server?

497

What are set operators?

638

What is a trace file and how is it created in oracle?

536

what is the stuff function and how does it differ from the replace function? : Sql dba

615

Can primary key be a foreign key?

550

Which two can be implemented as a centrally located logical architecture?

529

How to connect the oracle server as sysdba?

616

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