performance tuning in oracle 10g with example

advanced sql functions in oracle 10g

... string functions INSTR, SUBSTR, and REPLACE have analogs in Chapter 7, “Regular Expressions: String Searching and Oracle 10g. ” The INSTR Function INSTR ( in- string”) is a function used to find ... string functions with examples, and Appendix B gives examples of some important statistical functions available in Oracle 10g Overall, this book explores advanced new features of SQL in Oracle 10g ... illustrate each argument with examples INSTR returns a location within the string where search pattern begins Here are some examples of the use of the INSTR function: SELECT INSTR(‘This is a test’,’is’)...

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Advanced SQL Functions in Oracle 10g ppt

Danh mục: Cơ sở dữ liệu

... string functions INSTR, SUBSTR, and REPLACE have analogs in Chapter 7, “Regular Expressions: String Searching and Oracle 10g. ” The INSTR Function INSTR ( in- string”) is a function used to find ... string functions with examples, and Appendix B gives examples of some important statistical functions available in Oracle 10g Overall, this book explores advanced new features of SQL in Oracle 10g ... illustrate each argument with examples INSTR returns a location within the string where search pattern begins Here are some examples of the use of the INSTR function: SELECT INSTR(‘This is a test’,’is’)...

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advanced sql Functions in Oracle 10G phần 1 doc

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... string functions INSTR, SUBSTR, and REPLACE have analogs in Chapter 7, “Regular Expressions: String Searching and Oracle 10g. ” The INSTR Function INSTR ( in- string”) is a function used to find ... string functions with examples, and Appendix B gives examples of some important statistical functions available in Oracle 10g Overall, this book explores advanced new features of SQL in Oracle 10g ... illustrate each argument with examples INSTR returns a location within the string where search pattern begins Here are some examples of the use of the INSTR function: SELECT INSTR(‘This is a test’,’is’)...

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advanced sql Functions in Oracle 10G phần 2 potx

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... statement in a script A script is a text file that is stored in the operating system (e.g., Windows) in the C: /Oracle /bin directory (Windows) and run with a START command In the text file, we can include ... where contains ordering, partitioning, windowing, or some combination As an example, the ROW_NUMBER function with an ordering on salary in descending order looks like this: SELECT ... it is in the above example: “RANK().” The part of the function will contain an ordering, partitioning, or windowing clause The ordering clause is illustrated in the above example: ...

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advanced sql Functions in Oracle 10G phần 3 pot

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... Now, we’ll perform a join with and without the analytical function The Join Without the Analytical Function Just adding the join to the query shows that the join is performed with the other WHERE ... are using a join (actually an equi-join), the WHERE provides the equality condition for the equi-join 69 The Analytical Functions in Oracle (Analytical Functions I) Adding Ordering to a Joined ... a ranking takes place In this example, we find the salary 44000 actually occurring in two different percentile groupings where theoretically we’d expect both Stephanie and Chloe to be in the...

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advanced sql Functions in Oracle 10G phần 4 ppt

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... use moving averages are satisfied with the loss of the end points (along with the noise); others workarounds to keep the original set of readings with only the “inside” numbers smoothed In Oracle s ... windows and their reported window rows would be: 120 Chapter | Window 1: Original time Original value Windowed (smoothed) value 12 10 12 = [(12 + 10 + 14)/3] 14 Window 2: Original time Original ... Functions A windowing subclause is a way of capturing several rows of a result set (i.e., a “window”) and reporting the result in one “window row.” An example of this technique would be in applications...

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advanced sql Functions in Oracle 10G phần 5 pps

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... a row in the result set that can retrieve data on some other row(s) without explicitly defining a virtual table We will return to the above example presently, but before seeing the “row interaction” ... region attributes, we would be asking for the data warehousing “cube.” The warehousing cube concept implies reducing tables by rolling up different columns (dimensions) Oracle provides a CUBE predicate ... row-level result (region) at the same time without specifying that grouping is to take place GROUP BY may be used on a column without the column name appearing in the result set like this: SELECT count(*)...

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advanced sql Functions in Oracle 10G phần 6 ppsx

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... Springhill Ave 2003 Geaux Illini Dr Alice Rischert, “Inside Oracle Database 10g: Writing Better SQL Using Regular Expressions.” 225 Regular Expressions: String Searching and Oracle 10g REGEXP_INSTR ... scripting, and particularly Perl For a programmer who uses REs in a programming language, their use within Oracle will be very similar The conjunction of string searching, REs, Oracle 10g, and ... String Searching and Oracle 10g For many years, Oracle has supported string functions well (“strings” in Oracle are also known as character or text literals) This chapter presumes familiarity with...

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advanced sql Functions in Oracle 10G phần 7 docx

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... Regular Expressions: String Searching and Oracle 10g Alternative Quoting Mechanism in Oracle 10 10g Anyone who has had to deal with quotes in character strings in prior versions of Oracle has had to ... available in PL/SQL since Oracle In the O7 version of Oracle, TABLEs (aka INDEX-BY TABLEs) were introduced in PL/SQL The PL/SQL TABLE is much like the idea that programmers have of an array In ordinary ... negating marker We may negate the string we are looking for by placing a negating caret at the beginning of the string like this: SELECT addr FROM addresses WHERE REGEXP_LIKE(addr,'[^gp]') Giving:...

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advanced sql Functions in Oracle 10G phần 8 pptx

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... One-step INSERTs into a TCRO There is another way to insert data into the table We can use a reference to Address_table in the insert without going through the INSERT-null-UPDATE sequence we introduced ... | Loading a Table with a VARRAY in It — INSERT VALUEs with Constants A VARRAY is actually more than just a defined type Oracle s VARRAYs behave like classes in object-oriented programming Classes ... are instantiated into objects using constructors In Oracle s VARRAYs, the constructor defaults to being named the name of the declared type and may be used in an INSERT statement like this: INSERT...

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advanced sql Functions in Oracle 10G phần 9 pdf

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... standard means of exchanging data over the Internet In HTML, tags are standard For example, is an opening tag for bolding, is a closing tag for underlining, is an opening tag for a header ... A INSTR This function returns the location (beginning) of a pattern in a given string The general format for this function is: INSTR(string, pattern-to-find) For example, the query: SELECT INSTR('Pattern', ... from EMP, the statement brings along 331 Collection and OO SQL in Oracle all of the dependents with the employee Since we have joined a real table with a virtual table using the TABLE function,...

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advanced sql Functions in Oracle 10G phần 10 pptx

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... creating, 273-274 creating table that contains, 274 inserting values into, 275 using UPDATE with, 278-279 COLUMN_VALUE function, using with VARRAY, 307-309 columns, clearing, 39-40 formatting, ... for in a string position indicates where to start searching in source_string occurrence indicates which occurrence of the pattern_to_find (in the source_string) you wish to search for For example, ... 171 INDEX-BY TABLE, 269 INITCAP function, 358 INSERT INTO function, using, 275 INSTR function, 18, 359 using, 18-19 ITERATE command, 214-221 iteration, finding square root with, 214-221 with...

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Verb tenses in a table with examples

Danh mục: Ngữ pháp tiếng Anh

... englisch-hilfen.de – LEARNING ENGLISH ONLINE while I was working I wasn't working Was I working? He was working He wasn't working Was he working? I was going I wasn't going Was I going? He was going Past Progressive ... working Have I been working? He has been working He hasn't been working Has he been working? I have been going I haven't been going Have I been going? He has been going He hasn't been going just ... been + infinitive + ing I won't be going I would work sth will already have happened before a certain time in the future I'll be going He'll have been going Future Perfect Progressive *(infinitive...

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Tài liệu McGraw.Hill.Oracle.Database.10g.Performance.Tuning.Tips.and.Techniques.Jul.2007 doc

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... anyone working with Oracle 10g Rich Niemiec, Oracle Tuning Expert This book is the ultimate for Oracle 10gR2 Tuning! ” —Stan Novinsky, Systems Integration Engineer and Senior DBA Johns Hopkins University ... Oracle Performance Tuning going into the minutest details.” —Shankar Mukherjee, Oracle Consultant ComTel Technologies, Calcutta, India “Since I met Rich, he has influenced my approach to tuning ... functionality built into the Oracle kernel to assist in making tuning an Oracle instance more straightforward The Automatic ADDM is an integral part of the Oracle RDBMS capable of gathering performance...

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Oracle Database 10g Performance Tuning Tips & Techniques pdf

Danh mục: Hệ điều hành

... anyone working with Oracle 10g Rich Niemiec, Oracle Tuning Expert This book is the ultimate for Oracle 10gR2 Tuning! ” —Stan Novinsky, Systems Integration Engineer and Senior DBA Johns Hopkins University ... Oracle Performance Tuning going into the minutest details.” —Shankar Mukherjee, Oracle Consultant ComTel Technologies, Calcutta, India “Since I met Rich, he has influenced my approach to tuning ... functionality built into the Oracle kernel to assist in making tuning an Oracle instance more straightforward The Automatic ADDM is an integral part of the Oracle RDBMS capable of gathering performance...

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Tài liệu Oracle SQL Jumpstart with Examples- P1 docx

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... Features of Oracle SQL 2.1 New Features in Oracle Database 10g 2.1.1 Oracle SQL Improvements in Oracle Database 10g 2.1.2 PL/SQL Improvements in Oracle Database 10g 2.1.2.1 Java Improvements in Oracle ... Database 10g 2.1.3 XML Improvements in Oracle Database 10g 2.1.4 Some Utility Improvements in Oracle Database 10g 45 2.1.5 Database Object Improvements in Oracle 10g 2.2 New Features in Oracle ... Working with Constraints and ALTER TABLE 20.3.3.1 Adding a Constraint to an Existing Table 20.3.3.2 Modifying Constraints on Existing Tables 20.3.3.3 Constraint States 20.3.4 Renaming a Constraint...

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Tài liệu Oracle SQL Jumpstart with Examples- P2 ppt

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... Oracle Database 10g 2.1 New Features in Oracle Database 10g Oracle Database 10g contains the following SQL and PL/SQL features 2.1.1 Oracle SQL Improvements in Oracle Database 10g Oracle documentation ... What’s new in Oracle SQL utilities? This chapter takes a bird’s-eye view of Oracle SQL changes in both Oracle Database 10g and Oracle Database 9i Without further ado, let’s get started with Oracle ... SQL*Plus without logging into any database instance (this is useful for issuing SQL commands for starting and stopping the database) SQL*Plus does have a line editor built into it that you can use instead...

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Tài liệu Oracle SQL Jumpstart with Examples- P3 docx

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... examining speciﬁc aspects of queries such as using DISTINCT and the DUAL table So let’s begin with the basics of the SELECT statement and some simple examples just to get into the swing of things ... ('%c%'); Oracle Database 10g ignores line breaks and spacing in SQL commands For example, the following two SELECT statements are identical when submitted in SQL*Plus, even though spacing and line ... following default sorting rules for null values: If the column containing null values is being sorted in ascending order, the rows with null values are listed at the end If the column containing...

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Tài liệu Oracle SQL Jumpstart with Examples- P4 docx

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... 8.4 Using iSQL*Plus Apache A window appears with status information Minimize the window by clicking the minus sign in the top right corner of the window Do not close the window; closing the window ... reports by adding environmental settings to the script, changing column headings, adding page headings, and creating reports with outlined structures Let’s start with column settings Chapter Please ... example as shown following sets an interesting prompt, resulting in the prompt shown in Figure 8.6 Setting ESCAPE allows output of the period character See ESCAPE COLUMN INSTANCE NEW_VALUE _INSTANCE...

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Tài liệu Oracle SQL Jumpstart with Examples- P5 docx

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... if any, of the substring should be matched In the following example, the second occurrence of the string 10g begins at position 19: INSTR( 'oracle 10g oracle 10g oracle 10g' , '10g' ,1,2) = 19 LENGTH(expression) ... join tables or row sets together Now let’s examine different join types in detail and by example 10.3 Examining Different Types of Joins Let’s examine each type of join in turn using speciﬁc examples ... joining tables into singleresult sets, which gives you even more power to manipulate data using increasingly powerful and versatile queries 9.4 Endnotes Oracle Performance Tuning for 9i and 10g...

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