update a primary key value in sql
Tài liệu Updating a Primary Key Value pdf
Ngày tải lên :
26/01/2014, 10:20
... Updating a 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. ... called.
To change the primary key in the table in the database, the UpdateCommand of the
DataAdapter needs to locate the row based on the original primary key and update the
primary key value ... need to
update a primary key value in the data source underlying the DataTable.
Solution
Use the SourceVersion property of SqlParameter to update the primary key value in the
data source....
- 5
- 273
- 0
Tài liệu Define a Primary Key and Other Indexes docx
Ngày tải lên :
14/12/2013, 20:16
... 2.3 Define a Primary Key and Other Indexes
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 ... hurt performance when adding and updating data.
This is mainly true when importing or adding large amounts of data.
The other point is that when the table is small, you can over-index as
well. ... create a field that is automatically incremented, called an identity field.
This identity field can also be set as the primary key field, again so that the record is
made unique. The primary key...
- 5
- 383
- 0
Tài liệu Issues Involved When Updating the Primary Key of a Parent Row pptx
Ngày tải lên :
24/12/2013, 01:17
... made in the child 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 ... you change the DataColumn in
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. ... type are shown in Table 12.4
.
Table 12.4: Rule ENUMERATION MEMBERS
CONSTANT DESCRIPTION
Cascade Indicates that the delete or update to the DataRow objects in the parent
DataTable are also made...
- 6
- 428
- 0
Tài liệu Adding Records with a GUID Primary Key pdf
Ngày tải lên :
21/01/2014, 11:20
... 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, ... DataRowChangeEventHandler(parentTable_RowChanging);
childTable.RowChanging +=
new DataRowChangeEventHandler(childTable_RowChanging);
}
private void parentTable_RowChanging(object sender,
DataRowChangeEventArgs ...
The RowChanging event of the DataTable is raised when a DataRow is changing. The
action that occurred on the row can be determined by the Action property of the
DataRowChangingEventArgs argument...
- 4
- 340
- 0
Tài liệu Báo cáo khoa học: Tissue expression and biochemical characterization of human 2-amino 3-carboxymuconate 6-semialdehyde decarboxylase, a key enzyme in tryptophan catabolism pptx
Ngày tải lên :
19/02/2014, 02:20
... TGGCCAGATCTAAAAAAGAGGT
2fw ATCCCAGGAAACACCAGTAGA
10rev ATTGTTTTCTCTCAAGACCCAA
TaqMan probe T1 ACACCACAGCAAGGGAGAAGCAAAG
18Sfw CGCCGCTAGAGGTGAAATTC
18Srev TCTTGGCAAATGCTTTCGCT
TaqMan probe 18S TGGACCGGCGCAAGACGGAC
AB
Fig. ... kit (Stratagene, La Jolla,
CA, USA). Mutagenic primers were: 5Â-CGCTCGAGA
TGAAAATTGACATC
GCTAGTCATATTCTACC-3Â and
its complement for His6Ala; 5Â-GACATCCATAGT
GCT
ATTCTACCAAAAGAATGGCC-3Â and its ... rev,
reverse.
Sequence
ACMSD cloning: primer
1fw CGCTCGAGATGAAAATTGACATCCATA
GTCAT
11rev AAAGCTGAGCTCCATTCAAATTGTTTT
CTCTCAAG
4fw TTCTCGAGATGGGAAAGTCTTCAGAGT
GGT
ACMSD real-time PCR: primer and probe
1 ⁄ 3fw TGGCCAGATCTAAAAAAGAGGT
2fw...
- 14
- 601
- 0
Philosophy in a New Key A Study in the Symbolism of Reason, Rite, and Art
Ngày tải lên :
14/03/2014, 17:25
... says, "certainly have
quite elaborate 'ape-ways' into which a newcomer is gradually
acculturated, including among other patterns ways of using
available instruments for reaching ... for
nearly a thousand years of philosophical growth, beginning
with the early Church Fathers and culminating in the great
Scholastics. But, at last, its generative ideas—sin and salvation,
nature and ... world is a
back yard, or it may be as wide as an eagle's range and as
complicated as a monkey's jungle preserve. That depends on
the variety of signals a creature can receive, the variety...
- 255
- 564
- 0
Expect the Unexpected: Building business value in a changing world pptx
Ngày tải lên :
15/03/2014, 21:20
... been taking place at
several times the natural replacement
rate, the amount of available arable land
per person has dropped substantially
and agricultural productivity has slowed.
At the same ... supplies especially
in Central Asia, and conversion of coral
reefs to algal dominated systems.
16
Business is both heavily involved
in causing this damage and likely
to be increasingly affected ... freshwater use).
5
Assessing the Erosion Nexus in a
business context may generate insights
such as:
ã Demandandsupplystressesare
likely to be concentrated in areas
such as China and India that...
- 180
- 413
- 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
(5Â-ATGGAGGCCGGAGATTTCAAAG-3Â, +1 to +22 bp;
and 5Â-ACGGGCTTTAAGTATTTCATCAGGC-3Â, +1405
to +1428 bp) and actin primer pair (5Â-TTCGAGCAG
GAGATGGCCACC-3Â and 5Â-GAGATCCACATCTGYTG
GAAGGT-3Â). ... Mishra JP, Mishra S, Gee K & Kumar A (2005) Differ-
ential involvement of calmodulin-dependent protein
kinase II-activated AP-1 and c-Jun N-terminal kinase-
activated EGR-1 signaling pathway in ... of armyworm larvae.
Experimental procedures
Animals
Pseudaletia separata larvae were reared on an artificial diet
at 25 ± 1 °C in a photoperiod of 16:8 light ⁄ dark [10]. Pen-
ultimate instar larvae...
- 10
- 440
- 0
Báo cáo khoa học: Expression and characterization of cyanobacterium heme oxygenase, a key enzyme in the phycobilin synthesis Properties of the heme complex of recombinant active enzyme potx
Ngày tải lên :
23/03/2014, 20:22
... chloroplast genome of the redalga Porphyra purpurea. Plant
Cell 5, 465–475.
35. Kaneko, T., Tanaka, A. , Sato, S., Kotani, H., Sazuka, T.,
Miyajima, N., Sugiura, M. & Tabata, S. (1996) Sequence analysis
of ... K.,
Kimura,T.,Kishida,Y.,Kohora,M.,Matsumoto,M.,Matsuno,
A. , Muraki, A. , Nakazaki, N., Shimpo, S., Sugimoto, M., Taka-
zawa, M., Yamada, M., Yasuda, M. & Tabata, S. (2001)
Complete genomic sequence of the filamentous nitrogen-fixing
cyanobacterium ... Plant J. 15, 99–107.
37. Kaneko, T., Nakamura, Y., Wolk, C.P., Kuritz, T., Sasamoto, S.,
Watanabe, A. , Iriguchi, M., Ishikawa, A. , Kawashima, K.,
Kimura,T.,Kishida,Y.,Kohora,M.,Matsumoto,M.,Matsuno,
A. ,...
- 12
- 459
- 0
Socio-demographic characteristics of patients presenting pulmonary tuberculosis in a primary health centre, Zaria, Nigeria ppt
Ngày tải lên :
29/03/2014, 03:20
... immunization, antenatal care,
postnatal, family planning and laboratory services.
The study subjects include Nigerians aged 8 years and above
residing in Zaria, Kaduna State, Nigeria since there ...
Nigeria National Demographic Health Survey Report 2003.
Nirupa CG, Sudha GT, Santha TC, Ponnuraja CR, Fathima RV,
Chandrasekharan VK, Jaggarajamma K, Park K (2005). Textbook of
Preventive and ... determine the socio-
demographic characteristics of patients presenting with
pulmonary TB (PTB) at a primary health care centre in
Zaria, Kaduna State of Nigeria.
STUDY POPULATION AND METHODOLOGY...
- 4
- 322
- 0
Báo cáo khoa học: Acylation of lysophosphatidylcholine plays a key role in the response of monocytes to lipopolysaccharide ppt
Ngày tải lên :
31/03/2014, 01:20
... utilized two acyltransferase inhibitors.
SK&F 98625, originally described as a CoA-independent
acyltransferase inhibitor [16], was included as it inhibits
both LPCAT and LPAAT in MonoMac 6 cells ... the
cell walls of Gram-negative bacteria, is an important
microbial molecular pattern that initiates in ammatory
and coagulation reactions as part of the host innate immune
response to infection. ... U 1A and one for TNF -a.
The level of U 1A mRNA was similar in all samples as
shown in Fig. 4A. This indicated equal extraction efficiency
and that SK&F 98625 was not a general transcription
inhibitor....
- 7
- 322
- 0
Báo cáo Y học: The a1b1 contact of human hemoglobin plays a key role in stabilizing the bound dioxygen Further evidence from the iron valency hybrids potx
Ngày tải lên :
31/03/2014, 15:20
... the
experimental data was obtained as a function of time t .In
these computations, the initial value for each of the rate
constants was taken f rom the corresponding slo pe of a
biphasic curve (as delineated ... conđguration,
the a1 b2anda2b1 contacts undergo the principal changes
associated with the cooperative oxygen binding, so that
these are named the sliding contacts. At the a1 b1anda2b2
interfaces, ... chain heterogeneity could be
maintained even in the low concentrations of hemoglobin
corresponding to appreciable dissociation into a1 b1and
a2 b2 dimers [5]. When the a and b chains are separated
from...
- 10
- 648
- 0
