using index hints in oracle 10g
advanced sql functions in oracle 10g
Ngày tải lên :
01/06/2014, 01:08
... string has leading and trailing
spaces ')
FROM dual
Which gives:
TRIM('THISSTRINGHASLEADINGANDTRAILINGSPACES
This string has leading and trailing spaces
Both the leading and trailing ... returns part of a string. The
general syntax of the function is as follows:
SUBSTR(original string, begin [,how far])
An original string is to be dissected beginning at the
begin character. If no ... counting backward for nine characters, then
retrieving five characters from that point.
Often in string handling, SUBSTR and INSTR are
used together. For example, if we had a series of
names in...
417
349
0
Advanced SQL Functions in Oracle 10g ppt
Ngày tải lên :
27/06/2014, 06:20
... Using the SIN function to find the sine of
30 degrees:
SELECT SIN(value1*2*3.1416/360)
FROM trig
Gives:
SIN(VALUE1*2*3.1416/360)
.50000106
Example 2: Using the COS function to find the cosine
of ... string has leading and trailing
spaces ')
FROM dual
Which gives:
TRIM('THISSTRINGHASLEADINGANDTRAILINGSPACES
This string has leading and trailing spaces
Both the leading and trailing ... 178
RETURN UPDATED ROWS 183
Using Comparison Operators on the LHS 184
Adding a Summation Row — Using the RHS to
Generate New Rows Using Aggregate Data 186
Summing within a Partition 189
vii
Contents
Simpo...
417
394
0
advanced sql Functions in Oracle 10G phần 1 doc
Ngày tải lên :
08/08/2014, 18:21
... Using the SIN function to find the sine of
30 degrees:
SELECT SIN(value1*2*3.1416/360)
FROM trig
Gives:
SIN(VALUE1*2*3.1416/360)
.50000106
Example 2: Using the COS function to find the cosine
of ... far])
An original string is to be dissected beginning at the
begin character. If no how far amount is specified, then
the rest of the string from the begin point is retrieved.
If begin is negative, ... This book
can be used for individual study or reference, in
advanced Oracle training settings, and in advanced
xi
in the SELECT statement (for example, if you are
doing some calculations).
Log...
42
381
0
advanced sql Functions in Oracle 10G phần 2 potx
Ngày tải lên :
08/08/2014, 18:21
... clauses in analytical functions are
most easily explained by way of examples, so let’s
begin with the row numbering and ranking functions.
The Row-numbering and RankingThe Row-numbering and Ranking
Functions
There ... it is in the
above example: “RANK().” The <analytic clause>
part of the function will contain an ordering, partition
-
ing, or windowing clause. The ordering clause is
illustrated in the ... in
ranking. First, recall that the format of an analytical
function is this:
function() OVER(<analytic clause>)
where <analytic clause> contains ordering, partition
-
ing, windowing,...
42
344
0
advanced sql Functions in Oracle 10G phần 3 pot
Ngày tải lên :
08/08/2014, 18:21
... equality
condition for the equi-join.
69
Chapter
|
3
Adding Ordering to a Joined ResultAdding Ordering to a Joined Result
If an ordering is applied to the statement at this point,
it occurs after the ... (Analytical Functions I)
Changing the Final OrderingChanging the Final Ordering
after Having Added anafter Having Added an
Analytical FunctionAnalytical Function
The final ORDER BY can rearrange ... /
89
Chapter
|
3
Adding an Analytical Function to aAdding an Analytical Function to a
Query that Contains a Join (andQuery that Contains a Join (and
Other WHERE Conditions)Other WHERE Conditions)
In this...
42
352
0
advanced sql Functions in Oracle 10G phần 4 ppt
Ngày tải lên :
08/08/2014, 18:21
... (i.e., a “window”) and reporting the
result in one “window row.” An example of this tech
-
nique would be in applications where one wants to
smooth data by finding a moving average. Moving
averages ... random
noise is to use a moving average on ordered data by
taking an average using n physical rows above and
below each row. A moving average will operate in a
window so that if the moving average is based ... 70.18
08-FEB-06 70.18 69.712 68.76 70.18
09-FEB-06 70.18 69.950 69.55 70.18
Displaying a Running Total UsingDisplaying a Running Total Using
SUM as an Analytical FunctionSUM as an Analytical Function
As we...
42
347
0
Hướng dẫn cài đặt Oracle 10g trên Asianux server 3
Ngày tải lên :
05/11/2012, 11:43
... tính mà oracle không bị stop, bạn cần chú ý đến việc chỉnh
file /etc/init.d/dbora
Chạy lại oranav để thiết lập tự động khởi động dịch vụ
Lựa chọn “Setting auto startup/shutdown of Oracle ... THUẬT
HƯỚNG DẪN CÀI ĐẶT Oracle 10g TRÊN ASIANUX
SERVER 3
Trên cửa sổ dòng lệnh bạn thực hiện câu lệnh
# oranavi
Trên màn hình sẽ hiện lên hộp thoại cho phép bạn cài đặt Oracle, Và đồng thời ... Trang- 6
Bạn điền vào mật khẩu cho tài khoản Oracle : Tại bước này tài khoản oracle sẽ được tạo và được
đặt mật khẩu, có thư mục lưu trữ trong /home /oracle/
Bạn nhấn “Forward” Để chuyển sang...
17
765
0
Using information technology in teaching and learning reading skill of english for biology for 2nd-year students
Ngày tải lên :
07/11/2012, 14:31
... and (3)
advantages of using computers in reading ESP teaching and learning.
I.2.3.1.1.Model of teaching ESP reading with computers
Some models of using computers in teaching FL can be applied ... teaching
and learning (in general) and teaching and learning FL (in particular). As far as this study is
concerned, certain applications of computers in teaching and learning FL are going to ... following main methods to do the research:
Consulting books, journals and newspapers on applying IT in teaching and learning
foreign languages or ESP;
Searching information on the Internet...
43
1.4K
6
Using Server Controls in ASP.NET AJAX
Ngày tải lên :
05/10/2013, 10:20
... and in a
manner that involves touching your existing code as little as possible.
Additionally, for new applications, it involves reusing your existing skills in ASP.NET
and lowers the learning ... can see, the value for DJIA
is incremented by one point, the NASDAQ index is incremented by a half point, and the
S&P 500 index is incremented by a quarter point. This update effectively takes ...
Timer1
.
Delving deeper into the generated script details piece by piece would fast take us beyond
the scope of this chapter. If you are interested in having a more in- depth understanding
of the inner...
22
592
0
Specifying Locking Hints in a SQL Server Database
Ngày tải lên :
17/10/2013, 20:15
... is shown in Example 6-39
.
Example 6-39. File: UsingLockingHintsForPessimisticLockingForm.cs
// Namespaces, variables, and constants
using System;
using System.Configuration;
using System.Data; ... determines correct locking; hints should be used only when necessary.
Locking hints override the current transaction isolation level for the session.
A locking hint is specified following the ... clause using a WITH clause. The hint is
specified within parentheses and multiple hints are separated by commas.
Tables Table 6-21
, Table 6-22, and Table 6-23 describe the different locking hints...
5
417
0
Oracle 10g Client Release notes for Windows WW
Ngày tải lên :
22/10/2013, 15:15
... software. A
list of installation changes is provided in Oracle Database Installation Guide for
Windows.
In addition to that list, Oracle Database 10g release 1 (10.1) includes Oracle
Internet Directory ... be run from an Oracle 10g Application Server installation.
The Oracle Internet Directory client tools are the LDAP command-line tools, the
Oracle Internet Directory SDK, and Oracle Directory ...
Oracle Database
Client Release Notes
10g Release 1 (10.1.0.2.0) for Windows
Part No. B12179-01
March 2004
These Release Notes contain important last minute information not included in the
Oracle...
8
476
0
Oracle 10g Application Developers Guide _ Workspace Manager WW
Ngày tải lên :
22/10/2013, 15:15
... rows are preserved.
Renaming a Constraint or Index
To rename a constraint or index on a version-enabled table, you can or must
(depending on the length of the constraint or index name) use the
AlterVersionedTable ... for a discussion of design issues in deciding whether to
create a child workspace or a savepoint for certain needs
1.1.2 Using Savepoints
A savepoint is a point in the workspace to which data changes ... 1.8.
Unique Constraint Support
Tables with several kinds of unique constraints and indexes on them are supported
for version-enabled tables, as explained in Section 1.9.2.
The following metadata views...
402
352
0
Xem thêm