... video-
conferencing or next time when you are in the South) before we move forward. We also
need your help in starting to draw a picture of the future. We know this is entangled with
WE MDO future however your ... excited about winning and delighted about what is in it for
them. They will then believe they should stay working for P&G because it is great for them.
Winning is about : a bright picture of the ... your top rated ) using the suggested approach as above
with all your people.
Step 3 : Create a compelling shared vision:
We need a clear exciting and shared vision, including our reason for...
... INTRODUCTION
Permission to make digital or hard copies of all or part of this work for
personal or classroom use is granted without fee provided that copies are
not made or distributed for profit or commercial advantage ... 0.4 0.6 0.8 1
Resemblance
Estimationerror
Errorinjoinsizeestimation,250samples
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0 0.2 0.4 0.6 0.8 1 1.2
Resemblance
Errorinestimation
... is performed as in Chord
by searching for each value of the query and combining the results at the peer
launching the initial query. This approach ignores RDF/S schema information
during query ... destination
to the root node. Beside query results, these packets can also contain infor-
mation about network or peer failures for possible plan modification or even
statistics for query optimization purposes. ... considering horizontal distribution in query plans favours completeness
of query results (i.e., pro duce more and more valid answers).
In order to create the necessary foundation for executing...
... optimizer for our cost
SQL Parser
Optimizer
Coordinator
Layer
Optimization Goal
SQL Query/
Bidder
ExecutorExecutor
Bidder
Middleware
Local Execution
Layer
LayerApplication
Database 1 Database 2
Figure ... algorithm. Figure 5(i)
shows the optimization time for a star query of size 10 for
various values of parameter for WAN (similar trends are
observed for LAN). We intentionally chose a large query ... for a 10 relation star query (WAN); (ii) Optimization time for TPC-H Queries for
LAN; (iii) for WAN
Another surprising observation from our experiments
was that the two-phase optimization algorithm...
... running the workload that accesses V’.
Module CO
D
IADS analyzes the historic monitoring samples col-
lected for each of the 25 query operators. The moni-
toring samples for an operator are labeled ... perfor-
mance problem in individual databaseor storage silos. In
contrast, D
IADS analyzes and correlates data across the
database and storage layers.
DB-only Diagnosis: Oracle’s Automatic Database ... whose per-
formance is correlated with the performance of the
correlated operators.
• Module Correlated Record-counts (CR): Next,
D
IADS checks whether the change in P’s perfor-
mance is correlated...
... J. Norwood Crout
Artificial Intelligence Corporation
The INTELLECT natural language databasequery system, a
product of Artificial Intelligence Corporation, is the
only ... data items or expressions to be retrieved,
or the formatting and processing to be performed. A
query generator program then selects different combina-
tions of these phrases and, for each set ... analysis of
its performance.
Artificial Intelligence Corporation was founded about
five years ago, for the specific purpose of developing
and marketing an English language databasequery pro-
duct....
... m-semiring homomorphism is a semiring homomorphism, by the homomorphism property for
RA
+
K
,weonlyneedto
treat the case of Q having the form Q
= Q
1
\ Q
2
and can refer to [12] for the other cases. ... K
is a generator preserving
semiring homomorphism from
K to K
if h is a semiring homomorphism and furthermore, h(Gen(K)) = Gen(K
).Givena
query Q
∈ RA
+
K
(δ),leth(Q ) be the query in RA
+
K
(δ) ... occurrence of δ
k
i
by δ
h(k
i
)
. Observe that
for generator preserving homomorphisms h,each
δ
h(k
i
)
is of the form δ
l
j
for some j = 1, ,m. In other words, h(Q ) is
well-defined. The following is...
... to
obtain good performance with a limited amount of memory.
NiagaraCQ caches query plans, system data structures, and data
files for better performance.
1. Grouped query plans tend to be memory resident ... this query
into several queries using the query- split scheme described in
Section 3. The continuous query manager then invokes the
Niagara query optimizer to perform common query optimization
for ... Multiple Query
Processing in Deductive Databases using Query Graphs. VLDB
Conference 1986: 384-391.
[DFF+98] A. Deutsch, M. Fernandez, D. Florescu, A. Levy, D.
Suciu. XML-QL: A Query Langaage for XML.
http://www.w3.org/TR/NOTE-xml-ql.
...
... (Win Form)
Mô tả:
Người dùng nhất vào nút “Browse …” để chọn tập tin excel cần import. Kế tiếp nhấn nút “Import
excel” để thực thiện việc import dữ liệu vào database. Sau khi kết thúc import xong, ...
admin_tailieusv
namespace ImportExcel
{
public partial class FormMain : Form
{
public FormMain()
{
InitializeComponent();
btnBrowse.Click += new EventHandler(btnBrowse_Click);
btnImportExcel.Click += new ... data = ReadDataFromExcelFile();
// Import dữ liệu đọc được vào database
ImportIntoDatabase(data);
// Lấy hết dữ liệu import từ database hiển thị lên gridView
ShowData();
}
Where Code = @Code
InsertEmployee()
INSERT...