... code for the study and design of beam physics systems including accel- erators, spectrometers, beamlines, electron microscopes, and glass optical systems. At its core it is using differential algebraic ... 1, and possibly the address of the libraries has to be changed.On workstations, the graphics can be utilized under Xwindows and Tektronix. See [1, Supported Graphics Drivers]. The last versions ... coefficients, tables 1 through 5 list some sets of Enge coefficients taken from various magnets Cosy uses a set of Enge coefficients for typical magnets based on measured data from 34 3 COMPUTING SYSTEMS...
Ngày tải lên: 12/01/2014, 22:17
... Lexical Units An identifier consists of a letter optionally followed by more letters, numerals, dollar signs, underscores, and number signs Other characters such as hyphens, slashes, and spaces are ... the guess is made Bypassing a full key search, Oracle uses the guess to search the block directly However, as new rows are inserted, guesses can become stale and slow down access to rows To obtain ... raises the predefined exception SYS_INVALID_ROWID This also applies to implicit conversions Physical Rowids Physical rowids provide fast access to particular rows As long as the row exists, its physical...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User’s Guide and Reference phần 2 doc
... numbers are stored as approximate values So,... assigns the value of x to high 2- 50 PL/SQL User’s Guide and Reference Expressions and Comparisons Zero-Length Strings PL/SQL treats ... use of constants and variables. PL/SQL predefines several subtypes in package STANDARD. For example, PL/SQL predefines the subtypes CHARACTER and INTEGER as follows: SUBTYPE CHARACTER IS CHAR; SUBTYPE ... Get system time again. */ SELECT TO_CHAR(SYSDATE,’SSSSS’) INTO finish_time FROM sys.dual; /* Compute elapsed time in seconds. */ elapsed_time := finish_time - start_time; INSERT INTO results...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User’s Guide and Reference phần 3 pdf
... name and a subscript enclosed in parentheses. The subscript determines which element is processed. To reference an element, you specify its subscript using the syntax collection_name(subscript) ... courses CourseList) 6 NESTED TABLE courses STORE AS courses_tab; Each item in column courses is a nested table that will store the courses offered by a given department. The NESTED TABLE clause ... elements to varray projects: IF (projects.COUNT + 15) < projects.LIMIT THEN Using FIRST and LAST FIRST and LAST return the first and last (smallest and largest) index numbers in... depts(i);...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User’s Guide and Reference phần 4 pptx
... its fields outside the loop. Using Cursor FOR Loops 5-14 PL/SQL User’s Guide and Reference The sequence of statements inside the loop is executed once for each row that satisfies the query associated ... Oracle using the RELEASE parameter, as follows: EXEC SQL COMMIT WORK RELEASE; 5 -46 PL/SQL User’s Guide and Reference Processing Transactions Using SET TRANSACTION You use the SET TRANSACTION ... transaction The SAVEPOINT statement names and marks the current point in the processing of a transaction 5 -42 PL/SQL User’s Guide and Reference Processing... cursor variables Cursors...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User’s Guide and Reference phần 5 ppsx
... other user-defined exceptions must be raised explicitly by RAISE statements. Using the RAISE Statement PL/SQL blocks and subprograms should raise an exception only when an error makes it undesirable ... named specifically. Thus, a block or subprogram can have only one OTHERS handler. Handling Raised Exceptions 6-16 PL/SQL User’s Guide and Reference As the following example shows, use of the OTHERS ... PL/SQL User’s Guide and Reference Positional versus Named Notation Positional versus Named Notation When calling a subprogram,... actual parameter is passed actual parameter is passed...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User’s Guide and Reference phần 6 docx
... constants, exceptions, cursors, and subprograms available for use. The body fully defines cursors and subprograms, and so implements the spec. As Figure 8–1 shows, you can think of the spec as an operational ... packages let you define global variables—usable by subprograms and database triggers—that persist throughout a session. Referencing Package Contents To reference the types, items, subprograms, and ... What Is a Package? 8-2 PL/SQL User’s Guide and Reference What Is a Package? A package is a schema object that groups logically related PL/SQL types, items, and subprograms. Packages usually...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User’s Guide and Reference phần 7 ppt
... Mainly, you use cursor variables to pass query result sets between PL/SQL stored subprograms and various clients Neither PL/SQL nor any of its clients owns a result set; they simply share a pointer ... PL/SQL User’s Guide and Reference Constants and Variables db_table_name.column_name This identifies a database table and column that must be accessible when the declaration is elaborated expression ... teams.print_table(team_name); END; 10-10 PL/SQL User’s Guide and Reference Tips and Traps Tips and Traps This section shows you how to take full advantage of dynamic SQL and how to avoid some...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User’s Guide and Reference phần 8 pptx
... numeric, character, and string literals... Expressions, LOOP Statements 11-66 PL/SQL User’s Guide and Reference exits both loops Expressions Expressions An expression is an arbitrarily ... evaluates the parenthesized expression first, then uses the result in the larger expression When parenthesized expressions are nested, PL/SQL evaluates the innermost expression first and the... ... expression character expression date expression date expression numeric expression numeric expression Related Topics Assignment Statement, Constants and Variables, EXIT Statement, IF Statement,...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User’s Guide and Reference phần 9 doc
... LOOP Statements 11-102 PL/SQL User’s Guide and Reference LOOP Statements LOOP statements execute a sequence of statements multiple times. The loop encloses the sequence of statements that is to ... Topics Constants and Variables, Expressions LOCK TABLE Statement 11-100 PL/SQL User’s Guide and Reference LOCK TABLE Statement The LOCK TABLE statement lets you lock entire database tables in a specified ... single quotes (apostrophes). Character literals include all the printable characters in the PL/SQL character set: letters, numerals, spaces, and special symbols. PL/SQL is case sensitive within...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User’s Guide and Reference phần 10 ppsx
... inv.item_name); sql_expression This is any valid SQL expression. For more information, see Oracle8i SQL Reference. subquery This is a SELECT statement that provides a set of rows for processing. Its syntax ... C-5 Guidelines C-6 PL/SQL User’s Guide and Reference D Name Resolution This appendix explains how PL/SQL resolves references to names in potentially ambiguous SQL and procedural statements ... programs. The second script loads (or reloads) the database tables. To run the scripts, invoke SQL*Plus, then issue the following commands: SQL> START exampbld SQL> START examplod Sample...
Ngày tải lên: 07/08/2014, 11:22
PL/SQL User''''s Guide and Reference 10g Release phần 1 pdf
... Privileges on Invoker's Rights Subprograms 8-17 Using Roles with Invoker's Rights Subprograms 8-18 Using Views and Database Triggers with Invoker's Rights Subprograms 8-18 Using ... a file, reads the file contents, processes each line, then closes the file In the same way, a PL/SQL program issues a query and processes the rows from the result set: FOR someone IN (SELECT * FROM ... should be descriptive Avoid obscure names such as cpm Instead, use meaningful names such as cost_per_thousand Reserved Words Some identifiers, called reserved words, have a special syntactic meaning...
Ngày tải lên: 08/08/2014, 20:21
PL/SQL User''''s Guide and Reference 10g Release phần 2 doc
... operations using CLOB variables For details on the possible conversions, see "PL/SQL Character and String Types" on page 3-4 2- 22 PL/SQL User's Guide and Reference PL/SQL Expressions ... test different conditions instead of comparing a single expression to various values It has the form: CASE 2- 24 PL/SQL User's Guide and Reference PL/SQL Expressions and Comparisons ... statement. Using Aliases Select-list items fetched from a cursor associated with %ROWTYPE must have simple names or, if they are expressions, must have aliases. The following example uses an alias called...
Ngày tải lên: 08/08/2014, 20:21
PL/SQL User''''s Guide and Reference 10g Release phần 3 potx
... Iterations: LOOP and EXIT Statements 4-10 PL/SQL User's Guide and Reference step IN 0 TRUNC(high/low) * 2 Internally, PL/SQL assigns the values of the bounds to temporary PLS_INTEGER variables, and, ... elements using arbitrary numbers and strings for subscript values. (They are similar to hash tables in other programming languages.) What Is a Collection? 5-2 PL/SQL User's Guide and Reference ... than single values, you can store PL/SQL records or SQL object types in collections. Nested tables and varrays can also be attributes of object types. Understanding Nested Tables PL/SQL nested...
Ngày tải lên: 08/08/2014, 20:21
PL/SQL User''''s Guide and Reference 10g Release phần 4 pptx
... PL/SQL User's Guide and Reference Overview of Transaction Processing in PL/SQL Constructing REF CURSORs with Cursor Subqueries You can use cursor subqueries, also know as cursor expressions, ... ' || person.last_name || ', salary = ' || person.salary); Using Cursor Attributes 6-16 PL/SQL User's Guide and Reference END LOOP; END; / Example 6–2 Passing Parameters to ... tables you can access, then all the indexes you can access: DECLARE Querying Data with PL/SQL 6-10 PL/SQL User's Guide and Reference CURSOR c1 IS SELECT object_name, status FROM user_objects...
Ngày tải lên: 08/08/2014, 20:21
PL/SQL User''''s Guide and Reference 10g Release phần 5 potx
... create_dept('SALES','TEMP'); create_dept('SALES', 'NY'); You cannot skip a formal parameter by leaving out its actual parameter. To omit the first parameter and specify ... Subprogram Using Roles with Invoker's Rights Subprograms The use of roles in a subprogram depends on whether it executes with definer's rights or invoker's rights. Within a definer's ... under sub_t2 (n3 NUMBER); / Using Invoker's Rights Versus Definer's Rights (AUTHID Clause) Using PL/SQL Subprograms 8-15 We declare v as an instance of super_t2, but because we assign...
Ngày tải lên: 08/08/2014, 20:21
Đánh giá kiến thức , thực hành và điều kiện sản xuất, chế biến thực phẩm, đề xuất giải pháp can thiệp đảm bảo an toàn vệ sinh thực phẩm tại một số làng nghề sản xuất, chế biến thực phẩm truyền thống của tỉnh Hà Tây pdf
... câu hỏi thiết kế s n (KAP); - Quan s t, đánh dấu tiêu chí vệ sinh s môi trờng s s n xuất công cụ bảng kiểm (check list) thiết kế s n; 3.5 Phơng pháp xử lý s liệu: Sau thu đủ s phiếu điều tra, ... first out) : Vào trớc trớc HĐND, UBND : Hội đồng nhân dân, Uỷ ban nhân dân KSK : Khám s c khoẻ KTL : Không trả lời LNSX : Làng nghề s n xuất NĐTP : Ngộ độc thực phẩm SK : S c khoẻ SL : S lợng SX ... đa s (94,2%) s s s n xuất, chế biến thực phẩm làng nghề tiến hành làm s ch, tẩy trùng, làm vệ sinh dụng cụ s n xuất, chế biến thực phẩm trớc sau s dụng Việc quan trọng việc đảm bảo vệ sinh...
Ngày tải lên: 08/03/2014, 23:20
nghiên cứu các nhân tố ảnh hưởng đến hiệu quả hoạt động kinh doanh của các công ty ngành sản xuất chế biến thực phẩm niêm yết trên thị trường chứng khoán việt nam
... Bảng 3.14 Các thông s thống kế mô hình Unstandardized Standardized Coefficients B Coefficients Std Beta Error (Constant) 76.220 14.823 GROWTH 0.187 Collinearity Statistics t Sig Tole rance VIF ... Vào năm 2011, Marian Siminica, Daniel Circiumaru, Dalia Simion thực nghiên cứu “Determinants of Profitability: What factors play a role when assessing a firm s return on assets ?”, Dữ liệu nghiên ... phản ánh hiệu cá biệt Hiệu suất s dụng tài s n doanh nghiệp Hiệu suất s dụng tài s n cố định doanh nghiệp Hiệu suất s dụng vốn lưu động doanh nghiệp Hiệu suất s dụng lao động doanh nghiệp...
Ngày tải lên: 30/10/2014, 13:10