Oracle tutorial pl/SQL introduction, oracle tutorial plsql
This example describes Oracle pl/SQL. We will share this with you for your reference. The details are as follows:
I. What is pl
statement labeled by the label. There are some restrictions on the goto statement in PL/SQL, which is illegal for blocks, loops, if statements, to jump from the outer to the inner layer.
X: = 100;For V_counter in 1..10 LOOPIF V_counter =4 ThenGOTO End_of_loopEND IFx:=x+10;NullEND LOOPY:=x;
Note: null is a valid executable statement. NestingThere can be another program block insi
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
In a 64-bit Win8 system, the Pl/SQL connection Oracle setup tutorial, win8oracle
On Windows 8 64-bit system, 64-bit Oracle is installed, but there is no 64-bit PL/SQL, And the Oracle database cannot be connected. What should I do? There are some methods: we can install a 32
Oracle442 application scenarios --------- basic PL/SQL, basic plsql tutorial
Bytes -----------------------------------------------------------------------------------The Application Scenario 207---231 is skipped after the backup and restoration of the database .....The database network configuration is omitted, which is not very common in actual applications. The
Weird error !! An error occurred while connecting to oracle in adodb but PLSQl can be normally connected lt; B gt; Warning lt; B gt;: ocilogon () nbsp; adodbdriversadodb-oci8.inc.php lt; B gt; online lt; B gt; 244 lt; B gt; lt; br gt; 172.17.6 strange error !! An error occurred while connecting adodb to oracle. However, PL/SQL can be used for normal connection.
Warning: Ocilogon ()
\ Adodb \ d
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
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/
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
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
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/
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
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/
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
PL/SQL is slightly more complex to install under the Windows x64 bit operating system, providing PL/SQL with Oracle Instant client (which is much smaller than Oracle client files) for Oracle libraries to use this handy tool. Can save installation time for users) connection database configuration
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/
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