best book for pl sql programming

the contained blocks. In addition, whether an abnormal modal is triggered in the declaration part or in the exception handling part, the abnormal modal is immediately transmitted to the inclusion block. When the preceding rules are referenced in the contained block, the processing of abnormal modal will not be executed even if the OTHERS processor is set in the current block. 4 easy to read ● End ID is used for subprograms, triggers, packages, and other program blocks with names. For example:

I usually encounter some problems in PL/SQL programming. I will summarize them in the form of Q A for you to share. 1. Can pipelines be used to improve processing efficiency when you need to load a large amount of data streams to a table or process a large amount of data streams?MPs queue functions are very convenient for improving the performance of parallel q

rounding), and put the result into a variable: v_ your initials (for example: V_zs), and then output to the screen.2. Create and execute a PL/SQL program block, query the maximum salary in the EMP table of the Scott scheme, and put it into a variable: v_ your initials (for example: V_zs) and then display it on the screen.3. Create and execute a PL/

The case of PL/SQL programming specification As in SQL, Pl/sql is case-insensitive. Its general guidelines are as follows: Keywords (BEGIN, EXCEPTION, end, IF THEN else,loop, End LOOP), data type (VARCHAR2, number), internal fun

条件 LOOP 语句序列; END LOOP; ----------------------------------------------- 例如: WHILE total .. . total : = total + salary; END LOOP; 格式二(主要使用这种,EXIT的地方容易理解): Loop EXIT [when 条件]; 语句序列 Endloop format three: for I in 1 . . 3 loop statement sequence; end loop ; -- 打印1~10的数字 declare 1; begin loop --循环 --退出条件 exitwhen10; dbms_output.put_line(pnum); -- 加1 1; endloop; end;The above is the basic syntax of PL/

Note:The tables used in the following test cases are derived from the Scott scenario, before use, make sure that the user is unlocked.1. IntroductionAs with most programming languages, when you write a PL/SQL program, you can define constants and variables that are included in the PL/

Tags: custom var open cut Fundamentals Condition Create SQ nbspHave a chat, don't abandon (cover your face)PL/SQL is an extension of Oracle 's process language and structured Query language, and is an object-oriented query languagehas the following advantages : The characteristics of programming language, the use of procedural language control program structure,

concepts: Benefits: Disadvantages: Poor pl/SQL portability Modular Design Concept: (Instance) Paging process, order process, transfer process ...... More Oracle documents and video Tutorials: Http://2.taobao.com/item.htm? Id = 42922011874 spm = 686.1000925.0.0.ZVvkz6 mt = Sqlplus Programming Instance: 1. Write a stored procedure that can add records to a

PL/SQL (procedural language/sql) is a procedural programming language that Oracle introduces in the database.PL/SQL block structureDeclares part of the execution part (required) Exception handling section[DECLARE]--declaration section, optionalBEGIN-The execution part must b

-defined type. Basic Data type description Binary integer integer type data (note: binary binary) number[(precision, fractional)] can represent integers and floating-point numbers CHAR [(maximum length)] string, up to 32 767 bytes in length Long string Long raw-to- VARCHAR2 (maximum length) consistent with VARCHAR2 in the database DATE and date-in the database Boolean evaluates to True and False In addition to the basic types described above, PL/

Pl/SQL programming data type in Oracle pl Programming Data Type: www.2cto.com 1. scalar type (scalar) 2. composite 3. reference Type 4.lob( large object) -------------------------------------------------------------- case 1 of defining a scalar. defines a variable-length str

column in a row of data to the specified variable in turn.It is important to note that the type and number of variables corresponds to the columns of the cursor has an row.When you use the FETCH command to remove data from a cursor, you can envision a pointer to a row of data in the cursor.When the cursor is just opened, the pointer points to the first row, and each time a row is fetched, the pointer automatically points to the next line until all data is removed.After the cursor is used, it sh

Label:General Programming Language Basics 2.1pl/sql Programming Basics 1. Character type: Supports four types of characters: letters, numbers, symbols and spaces, combining one or more characters creates a lexical unit 2. Vocabulary unit A. Identifiers must begin with a character B. Reserved words are PL/

Label:The use of PL/SQL enables modular programming . In a PL/SQL block, you can define several sub-programs . Code that is relatively independent and needs to be executed frequently is defined as a subroutine that is called according to the name of the subroutine when neede

Tags: structure space height def BMS img Complete declare ROCPL/SQL Programming one: Preface II: PL/SQL Overview Two--1:PL/SQL block structure 1 "declare" 2--declaration sect

segment......When conditional expression Results n ThenStatement Segment N[ELSE statement Segment]END case;Example: Show week based on input 1-7DECLAREV_week Number:= S;BEGIN CaseV_week when 1 ThenDbms_output. Put_Line ('Monday'); when 2 ThenDbms_output. Put_Line ('Tuesday'); when 3 ThenDbms_output. Put_Line ('Wednesday'); when 4 ThenDbms_output. Put_Line ('Thursday'); when 5 ThenDbms_output. Put_Line ('Friday'); when 6 ThenDbms_output. Put_Line ('Saturday'); when 7 ThenDbms_outp

PL/SQL programming method Daquan I. dynamic SQL splicing (using replace) www.2cto.com pay attention to using replace to achieve dynamic SQL splicing effect, v_psql can be used to pass variables [plain] 1 declare 2 a number: = 2; 3 v_ SQL