define a primary key
Tài liệu Define a Primary Key and Other Indexes docx
Ngày tải lên :
14/12/2013, 20:16
... each record, such as a Customer ID. This How-To discusses what the
best candidates are for primary keys, as well as how to create them and other indexes.
You have created a base table and have ...
Indexes are used to improve performance when querying data, such as searching on fields
and sorting information. The primary key is an index that ensures that you have at least
one unique value ... entered data into it. How do you make sure
that you have a way of finding specific records? LastName and FirstName fields won't
work because you can have duplicates of those. You also want...
- 5
- 383
- 0
Tài liệu Updating a Primary Key Value pdf
Ngày tải lên :
26/01/2014, 10:20
... the UpdateCommand of the
DataAdapter needs to locate the row based on the original primary key and update the
primary key value with the current value of the primary key in addition to updating ... Primary Key Value
Problem
You changed a primary key value in a DataTable and updated the change back to the
underlying data source, but the value in the data source remained unchanged. You need ... System.Data;
using System.Data.SqlClient;
private const String TABLENAME = "TBL0408";
private DataTable dt;
private SqlDataAdapter da;
// . . .
private void UpdatePrimaryKeyForm_Load(object...
- 5
- 273
- 0
Tài liệu Issues Involved When Updating the Primary Key of a Parent Row pptx
Ngày tải lên :
24/12/2013, 01:17
... parent table.
Updating the Primary Key of a Parent Table and Pushing the Change to the
Database
In this section you'll learn what happens if you attempt to update the primary key in a ... DataTable. This is the default.
None Indicates that no action takes place.
SetDefault Indicates that the DataColumn values in the child DataTable are to be set
to the value in the DefaultValue ...
the parent DataTable on which the ForeignKeyConstraint was created, then the same
change is also made in any corresponding DataRow objects in the child DataTable. You
should set UpdateRule...
- 6
- 428
- 0
Tài liệu Adding Records with a GUID Primary Key pdf
Ngày tải lên :
21/01/2014, 11:20
... DataTable parentTable = new DataTable(PARENTTABLENAME);
cols = parentTable.Columns;
col = cols.Add(PARENTID_FIELD, typeof(Guid));
col.DefaultValue = Guid.NewGuid( );
parentTable.PrimaryKey ... the DataSet and create the relationship.
ds = new DataSet( );
Table 4-2. DataRowAction enumeration
Value Description
Add The row has been added to the table.
Change The row has been changed. ... be changed after each row is
added to the table so that each row has a different GUID primary key value. This is done
by handling the RowChanging event for each table. When a row has been added,...
- 4
- 340
- 0
bai tap unit 11- T. A 12 + key
Ngày tải lên :
23/07/2013, 01:25
... must have taken b. must have been taken
c. can't have been taken d. can't have taken
29. The garden ________. It has just started raining.
a. needn't water b. needn't be watered
c. ... reviewed
12. As for me, I consider reading ________ important part of ________ life.
a. an / Ø b. the / a c. Ø / the d. an / a
13. Anne says that she reads about half ________ hour a day, at least.
a. a ...
because a pack of sharks follow the trail to Santiago's boat ________.
a. so that the marlin is bitten largely by each of them
b. it is taken an enormous bite by each shark
c. and each shark...
- 6
- 1.4K
- 12
TRẮC NGHIỆM-TRÌNH ĐỘ A-CÓ KEY
Ngày tải lên :
21/08/2013, 00:10
... by
d. Taliban
-> b
9. You are many more intelligent than I
thought you are.
a. many
b. than
c. thought
d. are
-> a
III. Grammar and Vocabulary
10. Public libraries to
all readers.
a. open
b. ... winner of the
art competition a prize.
a. awarded
b. were being awarded
c. was awarding
d. was being awarded
d
46. When I arrived, the train
had left.
a. never
b. yet
c. already
d. suddenly
... 11:
1.
a. hear
b. dear
c. tear
d. bear
> d
2.
a. dead
b. head
c. weather
d. seat
> d
3.
a. please
b. nose
c. lose
d. house
> d
4.
a. main
b. saint
c. said
d. maid
> c
5.
a. barn
b....
- 253
- 608
- 4
Designing a Public Key Infrastructure
Ngày tải lên :
19/10/2013, 02:15
... mmc and then press ENTER.
d.
On the Console menu, click Add/Remove Snap-in.
e.
In the Add/Remove Snap-in dialog box, click Add.
f.
On the Add Standalone Snap-in dialog box, click Certificates ... click
Add, and then click Close.
g.
Click OK to close the Add/Remove Snap-in dialog box.
h.
On the Console menu, click Save As.
i.
In the Save As dialog box, type Certificate Management ... Designing a Public Key Infrastructure
Copyright 2002 Microsoft Corporation. All Rights Reserved.
Tasks Detailed Steps
Why was the Base-64 encoded binary x.509 certificate format selected?...
- 4
- 279
- 0
Define a Class in Visual Basic .NET
Ngày tải lên :
07/11/2013, 15:15
... different
ways.
An interface cannot exist as an object: It has no code and no place to store object data. A
class that implements an interface has an explicit contract with the interface: The class ...
You can also create properties that accept a parameter. For example, in the Northwind
database, a customer might have many orders. A parameterized property would be a
perfect way to access ... 9.1 Define a Class in Visual Basic .NET
Before writing code, you should take a moment to decide what data the class needs to
contain and what actions a developer (whether it is you or a teammate)...
- 7
- 458
- 0
TUBERCULOSIS PNEUMONIA AS A PRIMARY CAUSE OF RESPIRATORY FAILURE-REPORT OF TWO CASES pdf
Ngày tải lên :
06/03/2014, 04:20
... organism
per se. These infiltrates can appear within a matter
of days and can clinically simulate acute bacterial
pneumonia. Anti-tubercular treatment has been
considered to be an important factor ... was able to maintain 90% oxygen saturation
(SaO
2
) at room air. Anti-tuberculosis therapy was
continued and at 12 weeks he was maintaining
oxygen saturation (SaO
2
) of 94% at room air. He
was ... tuberculous
bronchopneumonia, was able to maintain oxygen
saturation (SaO
2
) of 96% at room air, while patient
with tuberculous pneumonia in case 2 was able to
maintain SaO
2
of 90% at room air at six weeks.
Organ...
- 7
- 352
- 0
The Euro Imbalances and Financial Deregulation: A Post-Keynesian Interpretation of the European Debt Crisis pot
Ngày tải lên :
06/03/2014, 19:20
... a share of assets of all commercial banks. “Z-
Score” is estimated as ROA+equity/assets/sd(ROA); the standard deviation of ROA, sd(ROA), is estimated as a 5-year moving average.
Source:
Based ... banks, and other financial institutions. “Costs/Income” is measured as total costs, as a share
of total income of all commercial banks. “Interest margins” equals the accounting value of a bank's ... (LFS): Database.
http://epp.eurostat.ec.europa.eu/portal/page/portal/employment_unemployment_lfs/data/
database (accessed December 19, 2011).
European Council. 199 2a. The Maastricht Treaty–Provisions...
- 37
- 442
- 0
Philosophy in a New Key A Study in the Symbolism of Reason, Rite, and Art
Ngày tải lên :
14/03/2014, 17:25
... mission that we regard it as the only im-
portant expressive act, and assume that all other activity must
be practical in an animalian way, or else irrational—playful,
or atavistic (residual) past ... magic"
rests on a mistaken view of causality. After all, a savage who
beats a tom-tom to drive off his brother's malaria would never
make such a practical mistake as to shoot his arrow ... language."
5
An interpretation of observed facts that adjusts them to a
general scientific outlook, a theory that bridges what used to
appear as a saltus naturae, a logical explanation...
- 255
- 564
- 0
Báo cáo khoa học: Insect cytokine, growth-blocking peptide, is a primary regulator of melanin-synthesis enzymes in armyworm larval cuticle pptx
Ngày tải lên :
16/03/2014, 11:20
... pair
(5¢-ATGGAGGCCGGAGATTTCAAAG-3¢, +1 to +22 bp;
and 5¢-ACGGGCTTTAAGTATTTCATCAGGC-3¢, +1405
to +1428 bp) and actin primer pair (5¢-TTCGAGCAG
GAGATGGCCACC-3¢ and 5¢-GAGATCCACATCTGYTG
GAAGGT-3¢). ... Yoichi Hayakawa
2
1 Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Japan
2 Department of Applied Biological Science, Saga University, Japan
Animal color patterns have ... ReverTra Ace
(TOYOBO). The cDNA was amplified with TH-specific
primer pair (5¢-CAGCTGCCCAGAAGAACCGCGAGA
TG-3¢, +11 to +36; and 5¢-GAACTCCACGGTGAACC
AGT-3¢, +1286 to +1305 bp), DDC-specific primer pair
(5¢-ATGGAGGCCGGAGATTTCAAAG-3¢,...
- 10
- 440
- 0
- define a fluid package
- define a joint research agenda to
- define a class in visual basic net
- adding records with a guid primary key
- updating a primary key value
- issues involved when updating the primary key of a parent row
- a semisupervised key phrase extraction approach
- define a denialofservice dos attack
- find row in datatable without primary key
Tìm thêm:
- hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam
- xác định các mục tiêu của chương trình
- xác định các nguyên tắc biên soạn
- khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn
- khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản
- khảo sát chương trình đào tạo gắn với các giáo trình cụ thể
- xác định thời lượng học về mặt lí thuyết và thực tế
- tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam
- điều tra đối với đối tượng giảng viên và đối tượng quản lí
- điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1
- khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam
- khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu
- nội dung cụ thể cho từng kĩ năng ở từng cấp độ
- xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct
- phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ
- mở máy động cơ lồng sóc
- mở máy động cơ rôto dây quấn
- các đặc tính của động cơ điện không đồng bộ
- hệ số công suất cosp fi p2
- đặc tuyến hiệu suất h fi p2