What is SDL (Storage Definition Language)?

What is SDL (Storage Definition Language)?
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Answer :

This language is to specify the internal schema. This language may specify the mapping  between two schemas
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Related questions

What is Data Storage - Definition Language?

Description : What is Data Storage - Definition Language?

Last Answer : The storage structures and access methods used by database system are specified by a set of definition in a special type of DDL called data storage-definition language.

What is VDL (View Definition Language)?

Description : What is VDL (View Definition Language)?

Last Answer : It specifies user views and their mappings to the conceptual schema.

What is DDL (Data Definition Language)?

Description : What is DDL (Data Definition Language)?

Last Answer : A data base schema is specifies by a set of definitions expressed by a special language called DDL.

Dr VK Saraswat, inaugurated the Structural Dynamics Laboratory (SDL) at National Centre for Automotive Testing, on 29 June 2011 at (a) VRDE (b) DMSRDE (c) DRDE (d) HEMRL

Description : Dr VK Saraswat, inaugurated the Structural Dynamics Laboratory (SDL) at National Centre for Automotive Testing, on 29 June 2011 at (a) VRDE (b) DMSRDE (c) DRDE (d) HEMRL

Last Answer : (a) VRDE

How does one get the view definition of fixed views/tables?

Description : How does one get the view definition of fixed views/tables?

Last Answer : Query v$fixed_view_definition. Example: SELECT * FROM v$fixed_view_definition WHERE view_name='V$SESSION';

Which parameter specified in the DEFAULT STORAGE clause of CREATE TABLESPACE cannot be altered after creating the tablespace?

Description : Which parameter specified in the DEFAULT STORAGE clause of CREATE TABLESPACE cannot be altered after creating the tablespace?

Last Answer : All the default storage parameters defined for the tablespace can be changed using the ALTER TABLESPACE command. When objects are created their INITIAL and MINEXTENS values cannot be changed.

Physical Storage of the Data

Description : Physical Storage of the Data

Last Answer : The finest level of granularity of the data base are the data blocks. Data Block :: One Data Block correspond to specific number of physical database space Extent :: Extent is the number of ... Index has index segment that stores data c) Roll Back Segment :: Temporarily store 'undo' information

Which parameter in Storage clause will reduce no. of rows per block?

Description : Which parameter in Storage clause will reduce no. of rows per block?

Last Answer : PCTFREE parameter Row size also reduces no of rows per block.

What is the significance of having storage clause ?

Description : What is the significance of having storage clause ?

Last Answer : We can plan the storage for a table as how much initial extents are required, how much can be extended next, how much % should leave free for managing row updations etc.,

What is DML (Data Manipulation Language)?

Description : What is DML (Data Manipulation Language)?

Last Answer : This language that enable user to access or manipulate data as organised by appropriate data model. ∙ Procedural DML or Low level: DML requires a user to specify what data are needed and how to ... : DML requires a user to specify what data are needed without specifying how to get those data.

The full form of DDL is (A Dynamic Data Language (B) Detailed Data Language (C) Data Definition Language (D) Data Derivation Language

Description : The full form of DDL is (A Dynamic Data Language (B) Detailed Data Language (C) Data Definition Language (D) Data Derivation Language

Last Answer : C) Data Definition Language

In XML, DOCTYPE declaration specifies to include a reference to ............ file. (A) Document Type Definition (B) Document Type Declaration (C) Document Transfer Definition (D) Document Type language

Description : In XML, DOCTYPE declaration specifies to include a reference to ............ file. (A) Document Type Definition (B) Document Type Declaration (C) Document Transfer Definition (D) Document Type language

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Description : What does "jumps off the screen" mean?

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How to add conditions in select statement in oracle?

Description : How to add conditions in select statement in oracle?

Last Answer : Just add the decode

How can I dump an oracle schema to a LOCAL file over a network connection from sqlplus?

Description : How can I dump an oracle schema to a LOCAL file over a network connection from sqlplus?

Last Answer : By connecting and spooling are you excluding the exp/imp commands (or expdb/impdb in 10g)?

What are the two ways to incorporate images into a oracle forms application?

Description : What are the two ways to incorporate images into a oracle forms application?

Last Answer : Boilerplate Images Image_items

Can one export a subset of a table? (for DBA

Description : Can one export a subset of a table? (for DBA

Last Answer : From Oracle8i one can use the QUERY= export parameter to selectively unload a subset of the data from a table. Look at this example: exp scott/tiger tables=emp query=\"where deptno=10\"

What are the types of visual attribute settings?

Description : What are the types of visual attribute settings?

Last Answer : Custom Visual attributes Default visual attributes Named Visual attributes. Window

How does one use the import/export utilities? (for DBA

Description : How does one use the import/export utilities? (for DBA

Last Answer : Look for the "imp" and "exp" executables in your $ORACLE_HOME/bin directory. One can run them interactively, using command line parameters, or using parameter files. Look at the imp/exp parameters ... and export data with the "Schema Manager" GUI that ships with Oracle Enterprise Manager (OEM).

what is a display item?

Description : what is a display item?

Last Answer : Display items are similar to text items but store only fetched or assigned values. Operators cannot navigate to a display item or edit the value it contains.

What is import/export and why does one need it? (for DBA

Description : What is import/export and why does one need it? (for DBA

Last Answer : The Oracle export (EXP) and import (IMP) utilities are used to perform logical database backup and recovery. They are also used to move Oracle data from one machine, database or schema to ... corruption. Ensure that all the data can be read. . Transporting tablespaces between databases . Etc.

Are there any troubleshooting tips for OEM? (for DBA

Description : Are there any troubleshooting tips for OEM? (for DBA

Last Answer : . Create the OEM repository with a user (which will manage the OEM) and store it in a tablespace that does not share any data with other database users. It is a bad practice to create ... successfully. Check the log to see the results of the execution rather than relying on this status.

Where can one get more information about TCL? (for DBA

Description : Where can one get more information about TCL? (for DBA

Last Answer : One can write custom event checking routines for OEM using the TCL (Tool Command Language) language. Check the following sites for more information about TCL: . The Tcl Developer Xchange - ... the OraTCL package . Tom Poindexter's Tcl Page - Oratcl was originally written by Tom Poindexter

How does one start the Oracle Intelligent Agent? (for DBA

Description : How does one start the Oracle Intelligent Agent? (for DBA

Last Answer : One needs to start an OIA (Oracle Intelligent Agent) process on all machines that will to be managed via OEM. For OEM 9i and above:

What is the Oracle Intelligent Agent? (for DBA

Description : What is the Oracle Intelligent Agent? (for DBA

Last Answer : The Oracle Intelligent Agent (OIA) is an autonomous process that needs to run on a remote node in the network to make the node OEM manageable. The Oracle Intelligent Agent is ... events registered in Enterprise Manager; and . Executing tasks associated with jobs submitted to Enterprise Manager.

What are the types of SQL Statement ?

Description : What are the types of SQL Statement ?

Last Answer : Data Definition Language : CREATE,ALTER,DROP,TRUNCATE,REVOKE,NO AUDIT & COMMIT.

How does one backout events and jobs during maintenance slots? (for DBA

Description : How does one backout events and jobs during maintenance slots? (for DBA

Last Answer : Managemnet and data collection activity can be suspended by imposing a blackout. Look at these examples: agentctl start blackout # Blackout the entrire agent agentctl stop blackout # Resume normal monitoring ... management agentctl start blackout -s jobs -d 00:20 # Blackout jobs for 20 minutes

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Description : What are the pre requisites ?

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What kind of jobs can one schedule with OEM? (for DBA

Description : What kind of jobs can one schedule with OEM? (for DBA

Last Answer : OEM comes with pre-defined jobs like Export, Import, run OS commands, run sql scripts, SQL*Plus commands etc. It also gives you the flexibility of scheduling custom jobs written with the TCL language.

Difference between SUBSTR and INSTR ?

Description : Difference between SUBSTR and INSTR ?

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Should the OEM Console be displayed at all times (when there are scheduled jobs)? (for DBA

Description : Should the OEM Console be displayed at all times (when there are scheduled jobs)? (for DBA

Last Answer : When a job is submitted the agent will confirm the status of the job. When the status shows up as scheduled, you can close down the OEM console. The processing of the job is managed by the OIA ... that OEM will not be able to send e-mail and paging notifications when the Console is not started.

Explain UNION,MINUS,UNION ALL, INTERSECT ?

Description : Explain UNION,MINUS,UNION ALL, INTERSECT ?

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WHY USE RMAN ? (for DBA

Description : WHY USE RMAN ? (for DBA

Last Answer : No extra costs Its available free ?RMAN introduced in Oracle 8 it has become simpler with newer versions and easier than user managed backups ?Proper security ?You are 100% sure your ... what need to backed up Knows what is required for recovery Knows what backups are redundant

WHAT IS RMAN ? (for DBA

Description : WHAT IS RMAN ? (for DBA

Last Answer : Recovery Manager is a tool that: manages the process of creating backups and also manages the process of restoring and recovering from them.

What is the basic structure of PL/SQL ?

Description : What is the basic structure of PL/SQL ?

Last Answer : PL/SQL uses block structure as its basic structure. Anonymous blocks or nested blocks can be used in PL/SQL.

What are the two parts of a procedure ?

Description : What are the two parts of a procedure ?

Last Answer : Procedure Specification and Procedure Body.

What are the datatypes a available in PL/SQL ?

Description : What are the datatypes a available in PL/SQL ?

Last Answer : Some scalar data types such as NUMBER, VARCHAR2, DATE, CHAR, LONG, BOOLEAN. Some composite data types such as RECORD & TABLE.

What are the return values of functions SQLCODE and SQLERRM ? What is Pragma EXECPTION_INIT ? Explain the usage ?

Description : What are the return values of functions SQLCODE and SQLERRM ? What is Pragma EXECPTION_INIT ? Explain the usage ?

Last Answer : SQLCODE returns the latest code of the error that has occurred. SQLERRM returns the relevant error message of the SQLCODE.

What is Overloading of procedures ?

Description : What is Overloading of procedures ?

Last Answer : The Same procedure name is repeated with parameters of different datatypes and parameters in different positions, varying number of parameters is called overloading of procedures. e.g. DBMS_OUTPUT put_line

s it possible to set a filter condition in a cross product group in matrix reports?

Description : s it possible to set a filter condition in a cross product group in matrix reports?

Last Answer : No

Can a repeating frame be created without a data group as a base?

Description : Can a repeating frame be created without a data group as a base?

Last Answer : No

What is an OLE?

Description : What is an OLE?

Last Answer : Object Linking & Embedding provides you with the capability to integrate objects from many Ms-Windows applications into a single compound document creating integrated applications enables you to use the features form .

What are the different objects that you cannot copy or reference in object groups?

Description : What are the different objects that you cannot copy or reference in object groups?

Last Answer : Objects of different modules Another object groups Individual block dependent items Program units.

If the maximum record retrieved property of the query is set to 10 then a summary value will be calculated?

Description : If the maximum record retrieved property of the query is set to 10 then a summary value will be calculated?

Last Answer : Only for 10 records.

Are there any undocumented commands in Oracle? (for DBA

Description : Are there any undocumented commands in Oracle? (for DBA

Last Answer : Sure there are, but it is hard to find them. Look at these examples: From Server Manager (Oracle7.3 and above): ORADEBUG HELP It looks like one can change memory locations with the ORADEBUG POKE ... rdbms/lib/oradbx.o; make -f oracle.mk oradbx) SQL*Plus: ALTER SESSION SET CURRENT_SCHEMA = SYS;

How does one use ORADEBUG from Server Manager/ SQL*Plus? (for DBA

Description : How does one use ORADEBUG from Server Manager/ SQL*Plus? (for DBA

Last Answer : Execute the "ORADEBUG HELP" command from svrmgrl or sqlplus to obtain a list of valid ORADEBUG commands. Look at these examples: SQLPLUS> REM Trace SQL statements with bind variables SQLPLUS> oradebug ... oradebug lkdebug -a convres SQLPLUS> oradebug lkdebug -r (i.e 0x8066d338 from convres dump)

What is the OPTIMAL parameter?

Description : What is the OPTIMAL parameter?

Last Answer : How does one use ORADEBUG from Server Manager/ SQL*Plus? (for DBA

What is the use of TABLES option in EXP command ?

Description : What is the use of TABLES option in EXP command ?

Last Answer : List of tables should be exported.ze)