Tags: array rar organization Throw exception build log job schedule exec expressionThis week's book is the Ultimate guide to Oracle's C PL (SQL) programming, published by the mechanical industry press, Sun Fingdong, Wang Yu, Guo Xiaohui.
Content Introduction:
The ultimate guide to Oracle 12c PL/
I found a
This book starts with some of the most basic knowledge and works with easy-to-understand examples to help you get started with simple knowledge points at and then go deeper step by step, each step will be used in concert with the example to explain to you. One small step at a time is the foundation of the next step, until the usage is relatively advanced.
Oracle10g PL/
Label:The seventh chapter is also quite miscellaneous, see not very clear. Although I finished it, I felt that I had not got too many things and had to go back to see them.
See this CHR function,
The original is to turn the number into ASCII code, such as Chr (10) is the carriage return.BEGIN Dbms_output.Put_Line (' Gogo ' | |CHR (10) | | ' Tot '); end;/Use here | | To connect characters, or you can use Concat to connect. However, Concat has only two parameters, that is, connecting two s
1. First talk about the difference between pl/SQL and SQL * plus. For example, it is easy to understand:
Pl/SQL-> C ++ LanguageSQL * plus-> Microsoft Visual C ++ 6.0 Compiler
Pl/SQL is
v_job= ' salesman ' then UPDATE scott.emp SET sal=sal* (1+c_salesman) WHERE empno=empno1; elsif v_job= ' MANAGER ' then UPDATE scott.emp SET sal=sal* (1+c_manager) WHERE empno=empno1; elsif v_job= ' SR.CONT ' then UPDATE scott.emp SET sal=sal* (1+c_sr_cont) WHERE empno=empno1; END IF; --Displays completion information dbms_output. Put_Line (' already for employees ' | | empno1| | ' A successful raise! '); EXCEPTION-handling of PL/
Tags: col program configuration SQL query field positioning Rod AC MVCThese days encountered two problems, are very wonderful, distressed for three days, the final positioning out.Problem one, inserting data through PL/SQL developer to a remote Oracle database server, querying data through PL/
In fact, this is also a problem at work. To tell the truth, I am not willing to do it myself. I also want to write statements for queries, but I have not thoroughly studied this kind of information,Write SQL statements in JavaProgramAt the same time, I chose to be lazy.
First, if it is golden, of course there is no need to say that the Direct Write statement is similar to select. If it is PL/
Using PL/SQL profiler to locate PL/SQL bottleneck code for SQL optimization, you can use SQL tuning advisor to achieve automatic SQL optimization and adjustment. For
Develop PL/SQL subprograms and packages, write triggers using PL/SQL, and Apply Oracle and pljdbc to JDBC.
1. subprograms:
Declaration, executable, and Exception Handling (optional)
2. subprogram classification:
A. Process-execute some operations
A. syntax of the creation process:
CREATE [or replace] PROCEDURE
BEGIN
Working with Dates in PL/SQL (date used in PL/SQL) The previous articles in this introductory PL/SQL series focused on working with strings and numbers in PL/
(Han shunping) pl/SQL programming (2), shunping plI. pl/SQL advanced-control structurePl/SQL provides three conditional branch statements: if -- then, if -- then --- else, if --- then --- elsif --- else(1) simple condition judgment if-thenQuestion: When writing a process, yo
1) classification of Sets
Oracle supports three types of collections:
Associative array (Index-by table)
Nested table)
Variable-length array (VARRAY)
One of their differences is that the Nested table and VARRY can be used either in PL/SQL or directly in the database, but the Associative array doesn't work, that is, associative array cannot be created separately using the create type statement. It can only b
Working with Numbers in PL/SQL (use numbers in PL/SQL) This article gives you all the information you need in order to begin working with Numbers in your PL/SQL programs. numbers in PL/
PL-SQL package creation and application, pl-SQL CreationZookeeper
Creating and applying PL-SQL packages
① IntroductionA package is a combination of PL/
1. The various parts of the sub-program:Declaration section, executable part, exception handling section (optional)2. Sub-Program classification:A. Procedures-performing certain operationsA. Syntax for creating a procedure:CREATE [OR REPLACE] PROCEDURE BEGIN[EXCEPTIONEND;B. Three modes of process parameters:In: Used to accept the value of the calling program, the default parameter modeOut: Used to return a value to the calling programIn out: Used to accept the value of the calling program and re
For SQL optimization, you can use SQL tuning advisor to achieve automatic SQL optimization and adjustment. For PL/SQL code, there are both SQL code and PL/
PL/SQL program control structure and change data and manage transactions in PL/SQL, plsql1. condition Control
A. IF condition branch Syntax:
If (condition 1) then
Statement;
Elsif (condition 2) then
Statement;
Elsif (Condition 3) then
Statement;
Else
Statement;
End if;
B. case condition branch: equivalent comparison, c
................................................................................................ END LOOP; D. Nesting loops and Labels: defining labels: 3. Sequential controlA.goto statement: Used to jump to a specified The disadvantage is that it increases the complexity of the program and reduces readability, so Oracle does not recommend using it for the day. B. NULL statement: Empty statement, do not have any actual effect, usually occupy position with 4. Exception Handling A. There are two
This article gives you all the information you need in order to begin working with numbers in your PL/SQL programs.Numbers in PL/SQL
PL/SQL offers a variety of numeric datatypes to suit different purposes:
Number. A true decimal
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