importing and exporting data

Importing and Exporting Data


Exam 70-432

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Bulk Copy Program (BCP)If you are exporting data using BCP, the account

that BCP is running under needs onlySELECT permissions on the table or view. If you

are importing data, the account that BCP isrunning under needs SELECT, INSERT, and ALTER

TABLE permissions.


BCP is a utility that you execute from the command line and has the following syntax:

bcp {[[database_name.][owner].]{table_name | view_name} | "query"}

{in | out | queryout | format} data_file[-mmax_errors] [-fformat_file] [-x] [-eerr_file]

[-Ffirst_row] [-Llast_row] [-bbatch_size][-n] [-c] [-w] [-N] [-V (60 | 65 | 70 | 80)] [-6]

[-q] [-C { ACP | OEM | RAW | code_page } ] [-tfield_term][-rrow_term] [-iinput_file] [-ooutput_file] [-apacket_size]

[-Sserver_name[\instance_name]] [-Ulogin_id] [-Ppassword]

[-T] [-v] [-R] [-k] [-E] [-h"hint [,...n]"]

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CAUTION CASE SENSITIVITYAll command-line switches for BCP are case-sensitive. For

example you use –e to specify an error fi le, yet –E tells BCP to preserve identity values during an import.

Examples:bcp AdventureWorks.HumanResources.Department out

c:\test\department.txt -n -SHOTEK –Tbcp AdventureWorks.HumanResources.Department in

c:\test\department.txt -c-SHOTEK -U<login> -P<password>

bcp "SELECT Name, GroupName FROM HumanResources.Department" queryout

c:\test\department.txt -n -SHOTEK –T

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EXAM TIPThe exam tests you on whether you know

which import/export option is most appropriate

to a given situation.

NOTE ENFORCING CHECK CONSTRAINTS AND TRIGGERSWhen you import data into a table using BCP, triggers and

check constraints are disabledby default. If you want to enforce check constraints and fi re

triggers during the import,you need to use the –h switch. If you do not disable triggers

and check constraints duringan import, you do not need ALTER TABLE permissions.

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The BULK INSERT command- BULK INSERT cannot export data.

- BULK INSERT is a T-SQL command and does not need to specify the instance name or

login credentials.

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BULK INSERT[ database_name . [ schema_name ] . | schema_name . ] [ table_name |

view_name ]FROM 'data_file'

[ WITH( [ [ , ] BATCHSIZE = batch_size ] [ [ , ] CHECK_CONSTRAINTS ][ [ , ] CODEPAGE = { 'ACP' | 'OEM' | 'RAW' | 'code_page' } ]

[ [ , ] DATAFILETYPE = { 'char' | 'native'| 'widechar' | 'widenative' } ][ [ , ] FIELDTERMINATOR = 'field_terminator' ] [ [ , ] FIRSTROW =first_row ]

[ [ , ] FIRE_TRIGGERS ] [ [ , ] FORMATFILE = 'format_file_path' ][ [ , ] KEEPIDENTITY ] [ [ , ] KEEPNULLS ]

[ [ , ] KILOBYTES_PER_BATCH =kilobytes_per_batch ] [ [ , ] LASTROW = last_row ]

[ [ , ] MAXERRORS = max_errors ] [ [ , ] ORDER ( { column [ ASC | DESC ] } [ ,...n ] ) ]

[ [ , ] ROWS_PER_BATCH = rows_per_batch ] [ [ , ] ROWTERMINATOR = 'row_terminator' ]

[ [ , ] TABLOCK ] [ [ , ] ERRORFILE = 'file_name' ] )]

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Database Configurationand Maintenance

EXAM TIPThe exam tests you on whether you know

which import/export option is most appropriate

to a given situation.

NOTE ENFORCING CHECK CONSTRAINTS AND TRIGGERSWhen you import data into a table using BCP, triggers and

check constraints are disabledby default. If you want to enforce check constraints and fi re

triggers during the import,you need to use the –h switch. If you do not disable triggers

and check constraints duringan import, you do not need ALTER TABLE permissions.

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The SQL Server Import and Export WizardYou access

the wizard by right-clicking a database within Object Explorer, selecting Tasks, and then

selecting either Import Data or Export Data.

- Import and Export Wizard can use any datasource that is recognized by SSIS, such as Microsoft Offi ce Excel, Microsoft Offi

ce Access, orExtensible Markup Language (XML) fi les.

- Import and Export Wizard supportsany data source or destination for which you have an Object Linking and

EmbeddingDatabase (OLE DB) provider

- Import and Export Wizard does not require a SQLServer instance to be either the source or destination

- Wizardcan move data from multiple tables or fi les in a single

operation

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Chapter Summary- BCP is a program that allows you to import

data from a fi le into a table as well asexport data from a table to a fi le.

- BULK INSERT is a T-SQL command that allows you to import data from a fi le into

a table.- The Import and Export Wizard uses a

subset of the SSIS feature set to move databetween a source and destination

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1. You want to import data into the Orders table. The table has triggers and check

constraints that you want to be checked to guarantee integrity. You choose to use

the BCP utility and specify the -h “CHECK_CONSTRAINTS, FIRE_TRIGGERS” hint to

accomplish your task. Which of the following permissions must be in place?

A. SELECT permission on the Orders tableB. ALTER TABLE on the Orders table

C. INSERT permission on the Orders tableD. A member of the bulkadmin role

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1. Correct Answers: A and CA. Correct: If you are importing data, you need SELECT, INSERT, and ALTER TABLE

permissionson the destination. However, if you do not disable triggers and check constraints, you

donot need ALTER TABLE permission.

B. Incorrect: If you are importing data, you need SELECT, INSERT, and ALTER TABLE permissions

on the destination. However, if you do not disable triggers and check constraints, you do not

need ALTER TABLE permission.C. Correct: If you are importing data, you need SELECT, INSERT, and ALTER TABLE

permissionson the destination. However, if you do not disable triggers and check constraints, you

donot need ALTER TABLE permission.

D. Incorrect: If you are importing data, you need SELECT, INSERT, and ALTER TABLE permissions

on the destination. However, if you do not disable triggers and check constraints, you do not

need ALTER TABLE permission.

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2. You are performing a migration on the Order database at Contoso from Oracle to SQL

Server. The Order database contains several hundred tables. The CustomerAddress

table has an XML column named AddressBook. What is the most effi cient, least

intrusive way to move the data to the new SQL Server database?A. Move the Order database from Oracle to SQL Server using

replication.B. Unload the data using Oracle utilities and load the data into

SQL Server using BCP.C. Move the Order database using the Import and Export Wizard.

D. Move the data from Oracle to SQL Server using the OPENROWSET function.

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2. Correct Answer: CA. Incorrect: Although it is possible to publish the tables from

Oracle to SQL Server, it ismore intrusive than using the Import and Export Wizard to

move the data.B. Incorrect: You need to code a BCP command for each table

that you are importing datainto, which is less effi cient than using the Import and Export

Wizard.C. Correct: The Import and Export Wizard allows you to

connect to Oracle, select multipletables, and move the data to SQL Server in a single operation.D. Incorrect: The OPENROWSET can move a single table at a

time, which is less effi cientthan using the Import and Export Wizard.

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Designing Policy BasedManagement

Exam 70-432

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Policy Based Management introduces the following new objects that are used to

designand check for compliance:

- Facets- Conditions

- Policies- Policy targets

- Policy categories

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FacetsFacets define the type of

object or option to be checked, such as database, Surface Area, and login. SQL Server ships

with 74 facets

get a list of the facets available by querying the dbo.syspolicy_management_facets table

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ConditionsYou defi ne the conditions that you

want to check or enforce for a policy by defi ning

criteria for the properties of a facet.

=, <>, LIKE, NOT LIKE, IN, or NOT

condition mustbe executed manually and cannot be scheduled.

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Policy TargetsConditions can also be used to specify the objects

to compare the conditionagainst, called policy targeting or target sets.

You can target a policy at the server level, such as instances that are SQL Server 2005 or

SQL Server 2008. You can also target a policy at the database level, such as all user databases

or all system databases

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PoliciesThe

execution mode can be set as follows:- On demand Evaluates the policy when directly

executed by a user- On change, prevent Creates data defi nition language

(DDL) triggers to prevent achange that violates the policy

- On change, log only Checks the policy automatically when a change is made using

the event notifi cation infrastructure- On schedule Creates a SQL Server Agent job to check

the policy on a defi ned schedule

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Policy CategoriesPolicy categories can be used to group one or more policies into a single compliance unit. If

not specifi ed, all policies belong to the DEFAULT category.

Each policy category has a Mandate property that applies to databases

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Policy ComplianceBecause you cannot set all policies to enforce

compliance, you need to check policies manuallythat cannot be enforced on a regular basis.

You view policies that apply to an instance byright-clicking the name of the instance within Object Explorer and selecting Policies, View

You can check policies that apply to an instance by right-clicking the name of the instance

within Object Explorer and selecting Policies, Evaluate.

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Central Management Server

Import and Export PoliciesSQL Server

ships with 53 policies that are located in the Microsoft SQL Server\100\Tools\Policies folder.There are 50 policies for the database engine, 2

policies for Reporting Services, and 1 policyfor Analysis Services.

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1. You have defi ned several policies that you want applied to all databases within an

instance. How do you ensure that a database owner is not allowed to avoid the policy

check with the least amount of administrative effort?

A. Create a condition that checks all databases.B. Add the policy to a user-defi ned policy category and set the Mandate property.

C. Add the policy to the default policy category.D. Check the policies manually against the

instance.

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1. Correct Answer: CA. Incorrect: Even if you create a condition that checks all

databases, a database owner canchoose not to subscribe to a policy unless you have mandated

compliance.B. Incorrect: While you could create a policy category that has the

Mandate propertyenabled and add the policy to the category, it requires more effort

than just adding thepolicy to the default policy category.

C. Correct: The default category is confi gured with the Mandate property enabled. In

addition, you cannot disable the Mandate property.D. Incorrect: While you could check the policies manually, this

requires more effort thatadding the policy to the default category.

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Dziękuję za uwagęTomasz Gacek

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importing and exporting data

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