Databases Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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DB Architecture (141)
DB Administration (291)

DB Development (113)
SQL PLSQL (3330)
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Database Management (1411)
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Databases Interview Questions

Questions Answers Views Company eMail

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 1659

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

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

1366

Sql technical questions

1283

What is view? Can we update view

1441

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

1393

What if we write return in procedure?

1431

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

1395

How to handle bulk data?

1316

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

1403

What are the steps for performance tuning.

1339

What is parallel hint?

1330

What is the difference between SQL and NoSQL databases

1 1051

What is a primary key, and how is it different from a unique key?

3 1284

How do you retrieve the second highest salary from a table?

3 1352

Un-Answered Questions { Databases }

what is database replicaion? : Sql server database administration

1202

What is projection in mongodb?

What do you understand by a database object?

1066

What does GEQO stands for in PostgreSQL?

1394

What are triggers in oracle?

1040

How to show table structure mysql?

1012

Explain various On-Delete options in a DB table. Which is the default option?

1469

Suppose you want to implement the one-to-many relationships while designing tables. How would you do it?

972

What is mscorsvw.exe - process - microsoft .net framework ngen?

955

What is row_number()?

987

What is a reference table in database?

1028

What are triggers in sql?

1022

What are the parts of a function?

942

Explain how we can do multi-join query in ms access?

858

How to show table names with 'mysqlshow'?

1040

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