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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

 1 870

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: := . ( @ % ;

 599

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

 788

Sql technical questions

 775

What is view? Can we update view

 867

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

 777

What if we write return in procedure?

 788

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

 745

How to handle bulk data?

 889

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

 844

What are the steps for performance tuning.

 842

What is parallel hint?

 746

Un-Answered Questions { Databases }

What is string data type in sql?

531

how would you write a sql query to compute a frequency table of a certain attribute involving two joins? What changes would you need to make if you want to order by or group by some attribute? What would you do to account for nulls?

1098

You have 4 instances running on the same UNIX box. How can you determine which shared memory and semaphores are associated with which instance?

1444

Does office 365 include ms access?

477

What is PL/SQL Records?

626




What are the limitations of mongodb?

5

Explain the difference between a FUNCTION, PROCEDURE and PACKAGE.

1844

What is the difference between count 1 and count (*) in a sql query?

497

How to start database server in postgresql?

437

Is the popularity of microsoft office still being protected by microsoft access?

435

What are the benefits of using access?

411

Can you rollback after commit?

524

What is Command line parameters in PLSQL.?

580

Write an sql query for deleting duplicate rows?

551

How to update a field in SQL after ALTERING a row?

690

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