Oracle Stored Procedure record in project-common syntax memoOracle Stored Procedure record in project-common syntax memo
You need to write an oracle stored procedure in the project. You need to collect a complex query (involving multiple tables)
The Oracle db_file_mulitblock_read_count parameter Oracle DB_FILE_MULTIBLOCK_READ_COUNT is an important global parameter in Oracle, which can affect the system level and sessioin level. It is mainly used to minimize the number of data blocks that
Oracle learning stored procedure (1) syntax stored procedure creation Syntax: create or replace procedure stored procedure name (param1 in type, param2 out type) as variable 1 type (value range ); variable 2 type (value range); Begin Select count (*)
Introduction to stored procedures our commonly used database language SQL statements need to be compiled before execution, while stored procedures (StoredProcedure) are a group
Introduction to Stored procedures our commonly used database language
There is still a rollback segment in Oracle10g named system, which was created by Oracle when the database was created, and the rollback segment exists in the SYSTEM tablespace. It
There is still a rollback segment in Oracle10g named system, which
I. Mode
Ii. stored procedures and functions
Syntax:
Create procedure sp_name ([proc_parameter [,...])
[Characteristic...] routine_body
Create function sp_name ([func_parameter [,...])
RETURNS type
[Characteristic...]
One of the stored procedures-creating a simple Stored Procedure
I. Stored Procedure
Stored Procedures (Stored Procedure) are a set of SQL statements for specific functions in large database systems. They are compiled and Stored in the database.You
Actual Example: CREATEORREPLACEPROCEDUREpro_droptableIScursorcurisselecttable_namefromuser_tableswheretab
Actual Example: create or replace procedure pro_droptable IS cursor cur is select table_name from user_tables where tab
Actual
SQL: MySql create FUNCTION, VIEW, PROCEDURE, mysqlprocedure
Use geovindu; # function DELIMITER $ drop function if exists f_GetDepartmentName $ CREATE function f_GetDepartmentName (did int) returns nvarchar (400) begindeclare str nvarchar (100 );
New Features of Oracle 10 GB-code obfuscation
Author: Fuyuncat
Source: Www.hellodba.com
Before Oracle 9i, a command 'warp' was provided to encrypt the code. However, it is based on scripts in the command line mode. In 10 Gb,
Oracle 10 Gb new feature -- selective compilation
Author: Fuyuncat
Source: Www.hellodba.com
Oracle10g provides a new feature that is very convenient for developers-selective compilation. That is, only part of the code in
Today, I saw a question raised by a netizen.
See the following table:Indicator number calculation formula indicator value decomposition markA (B + C) + E? 1B 10 0C d + E? 1D 30 0E 5 0
The value of 0 is fixed, and the value of 1 is calculated based
Oracle dynamic SQL
Dbms_ SQL built-in package
Native dynamic SQL
Three common functions of native dynamic SQL
Execute dynamic DDL or DML statements that do not contain Bound variables.
Execute dynamic DDL or DML containing Bound variables
From csdn
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In Oracle, four lobs types are available: blob, clob, bfile, and nclob.
The following is a brief introduction to the lob data type.
L BLOB: Binary lob, Which is binary data. It can
Using ref cursor, you canProgramInter-pass result set (a program opens the cursor variable and processes data in another program ).You can also use ref cursor to implement bulk SQL to improve SQL Performance.
There are two types of ref cursor:
The Stored Procedure contains three parts: Declaration, execution, and exception.
There are no parameter programs or stored procedures with parameters.
No parameter program syntax
1 create or replace procedure noparpro
2;
3 begin
4;
5
Oracle Table Generation MySQL table creation DDL
Some colleagues asked if there were any small tools for converting Oracle table to MySQL syntax, so they wrote this small function and made it public. Maybe someone could use it.
Create or replace
PHPNginxMySQL high concurrency optimization test project requires a free coupon grabbing function, involving high concurrency issues, after studying for a few days, record it, welcome fellow workers to throw bricks ~~
The entire project is based
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