select count into

Oracle uses a cursor to add a primary key statement to all user tables. oracle cursor Application Scenario: adding an auto-increment primary key to a data table can speed up data table access, and is the fastest in integer indexing. This program is

Oracle uses a cursor to create a primary key statement for all user tables Application Scenario: adding an auto-increment primary key to a data table can speed up data table access, and is the fastest in integer indexing. This program is suitable

Application: Add a new primary key to the data table to speed up the data table access speed, and is the fastest index shaping. This program is suitable for running when you import an Oracle database without a primary key being removed.Code

As below, create a new two stored procedure:In the master autonomy transaction, we insert a record, then in the autonomous transaction, we look at the number of rows in the table, then try to insert three records, view the number of rows, finally

Objective During the development of the database, the complex business logic and the operation of the database are often encountered, and the stored procedures are used to encapsulate the database operations. If the project has more stored

L Test Case of transaction nesting (1) First, create a table:Create tables MSG (MSG varchar2 (100 )); (2) Then, create the sub-transaction Stored Procedure local.Create or replace procedure local is CNT number: =-1; -- global variables begin select

--metadata name:dbtk_or_create_tablespace type:execdeclare  default_data_path varchar2 (513);  System_file        varchar2 (513);  i                  pls_integer;  c                  char (1);  cnt                pls_integer;  data_ts_name     

Stored Procedures, learned how to use cursors, and learned how to process data. Implicit cursor select into from All implicit cursors are assumed to return only one record. You do not need to declare, open, or close an implicit cursor. PL/SQL

Oracle uses scripts to create data table space and users -- Create Table space (enterprise database) ----- declare v_rowcount number (5); begin select count (*) into v_rowcount from dual where exists (select 1 from dba_tablespaces where

/* Statistics MySQL additions and changes to the QPS SQL script */;DROP TABLE IF EXISTS qpsinfo;CREATE TABLE Qpsinfo (ID INT PRIMARY KEY auto_increment,' Type ' INT COMMENT "1 insert,2 delete,3 update,4 Select",' Count ' INT COMMENT "total number of

Enterprise|mysql Peeking in MySQL 5.0 Enterprise functional ©by Dennis DLL (Dan Zhou) 2004.01 MySQL5.0 Alpha, our long-awaited create function and create Procedure are finally available. For more information, please refer to the news of the

Although MySQL stored procedures are generally not used, they are still required in some special scenarios. Recently, I encountered a project for SQL Server Migration to mysql. some SQL Server stored procedures need to be migrated to mysql. So I

Detailed explanation of how mysql stored procedures obtain returned values in dynamic SQL statements bitsCN.com MySql general paging stored procedureProcess Parameters P_cloumns varchar (500), p_tables varchar (100), p_where varchar (4000), p_order

Oracle conditional branch statements are frequently used. The following describes the syntax of Oracle conditional branch statements in detail. If you are interested in this, take a look. Oracle condition branch statements are used to select the

Explain how to use various control statements in Oracle databases, and explain how to use oracle The use of various control statements in the Oracle database is what we will introduce in this article, including some logical control statements, the

Create or replace procedure PD_GENERATE_HELP_LAST_TABLES IS-- Generate a local data table for the view vw_last_xxx generated from sqlserverTabNocount NUMBER;V_ SQL VARCHAR2 (200 ); BEGIN-- Judge the table dat_help_last_scqy1)SELECT count (*) INTO

Create or replace procedure createmanageruser as v_certificatenumber nvarchar2 (100); -- ID card number (ID card) v_accessionstate integer; -- active state -- cursor field value (annotation field not used) v_userid varchar2 (40); v_loginname

To create a data table with a stored procedure: Note that you must add Authid current_user if you create a table that already exists, the stored procedure continues to execute, but if you do not add this key statement, the stored procedure will

    sometimes have some headaches when doing projects based on a lower version of Oracle. For example, to perform a current transaction (transaction) consisting of multiple DML, record some information for each step of DML into the trace table,

Access permission for the source object to be enabled: 1. Create a remote table view createviewv_bill_tbl_version_update_control_infoasSELECT * FROMdblink (metadata, SELECTid, appid, ratio, status, Access Permissions for the source object to be