dcp creation

Table Creation Index Create index index name on table name (field name ASC); View Creation Index Creating a view index first to bind the view to the schema Alter view view_prod_productprogress with SCHEMABINDING as SELECT * FROM dbo. T1 as a INNER JOIN dbo. T2 as B on a.id=b.idWhen binding to schemas, the use of a table consists of two parts, the dbo. T1 Next Create the Index if (exists (SELECT * from

This article mainly introduces PHP to obtain file size and file creation time method, involving PHP filesize and fileatime function of the use of skills, with a certain reference value, the need for friends can refer to the --> This example describes how PHP obtains the file size and file creation time. Share to everyone for your reference. The specific analysis is as follows: PHP can display various prop

Tags: des style blog http io ar color using SPAlthough the partitioning has many advantages (a) SQL Server partition partition, but not at will, and do not say that the complexity of partition management, only the negative impact of cross-partition, we need to carefully analyze whether it is necessary to use the partition. General partition created business features: used for statistics, less use of historical data, data self-growth, possible data redundancy, large amount of data volume insertio

versions such as PHP 5.6 may remove this extension. If you're using mysql_connect () and mysql_query (), you might want to rewrite some of the code in the future, so it's best to use mysqli or PDO instead. If you are developing a new project, please do not use the MySQL extension, try to replace it with mysqli extension or PDOPHP: Select MySQL APIVagrant "Virtual Machine creation program"If you're using a different environment when you're developing

The "preface" is explained in the blog post:This article will introduce the User and table space creation related commands through personal tone, in the current time point "May 16, 2017 " under the grasp of the technical level is limited, there may be a lot of knowledge understanding is not enough in-depth or comprehensive, I hope you point out the issue of common exchange, In the follow-up work and study, if found that the content of this article and

CREATE TABLE CDPT (ID Number (6),Name VARCHAR2 (30),Constraint pk_id primary key (ID));Change the delay segment creation attribute of the database to false to execute this sentence in SQL plusALTER SYSTEM SET Deferred_segment_creation=false;Create a sequence1 Create sequence SEQ_CDPT 2 3 1 4 5 1 6 7 99999 8 9 1 Ten One nocycle A NoCacheNote that when adding with ADO, you need to add a commit, otherwise the data does not appear in VS1 INSERT INTO CD

before writing this article, make clear my MySQL version. Mysql> SELECT VERSION (); +------------+| VERSION () |+------------+| 5.5.29-log |+------------+1 row in Set (0.00 sec)There is now a requirement that a table has a field created_at records the timestamp of the record creation, and another field Updated_at records the timestamp of the record being updated.Let's try the following several statements.The first one, the test passes.CREATE TABLE te

results will be a lot of repetition.How to solve it?Of course, the use of primary and foreign keys to constrain. This will automatically summarize the corresponding data records in the view. Records that exist in the foreign key table are automatically matched to the primary key tablethird, the creation of foreign keysRight-click the database diagram:On the table that you added, right-click the relationship:Click the table and column specifications t

Tags: Oracle user creationPermissions:Create sessionCREATE tableUnlimited tablespaceConnectResourceDbaCases:#sqlplus/nologSql> Conn/as sysdba;Sql>create user username identified by passwordSql> Grant DBA to username;Sql> Conn Username/passwordSql> select * from User_sys_privs;We will start with the creation of Oracle User Rights table, then explain the general actions such as landing, so that you have a deep understanding of the Oracle User Rights tab

creation, deletion, selection and use of data types (Note: This article demonstrates root privileges) (1) mariadb Create a database 1.1: Create a database using Mysqladmin; [[emailprotected]10.19.166.166~] #mysqladmin-uroot-p NBSP;CREATENBSP;TESTDB1 enterpassword:// here to fill in the password for the MARIADB database [[emailprotected ]10.19.166.166~] #mysql mariadb[(none)]>showdatabases; +--------------------+ |database| +------------------

1. Foreground function---home---brand page---product details---product review management---shopping cart management---billing page---user login and exit---personal center management---order submission page2. Background function---landing system---user management---classification management---brand management---commodity management---order status Management---order Management-----------------------------------------------------------------------------------------

size of the initial zone Ii.next: The size of the next area iii.pctincrease: The percentage of space growth for each area in the future iv.minextents: the number of initial extents in the segment v.maxextents: most What is the number of extents that can be extended? LOGGING: The creation of the specified table is recorded in the Redo log file. It also specifies that all subsequent operations on the table will be logged. This is the default setting. N

Tag: Type module Lin executes the program-oriented into main fine??Creation and application of Pl-sql package ① Brief IntroductionA package is a combination of related procedures, functions, variables, constants, and cursors, such as PL/SQL programming elements, which have the characteristics of object-oriented programming language. Is the encapsulation of these PL/SQL programming elements.Packages are similar to classes in the C + + and Java language

. Integerfield ()classmeta:db_table='Student'9, delete the "blog_student" table and synchronize the database manage.py syncdb10, outputting information such as data type to the models.py file1) manage.py inspectdb > blog/models.py2) View the contents of the models file (the effect of removing superfluous): fromDjango.dbImportModelsclassStudent (models. Model): ID= Models. Integerfield (primary_key=True) name= Models. Charfield (max_length=50) Age=models. Integerfield () Intime=models. Datetimefi

user for the database to be monitored, and through this monitoring user to obtain the monitoring information, first open the "file", "Oracle User Wizard" interface, as shown in:Click "Next" to enter the admin rights login screen, remember the administrator permissions of the user, because we want to create a new user, as shown in:The Network service name can be obtained from the Oracle client here, or it can be set directly through the "Server ip/DB instance" mode, and click "Next" after the co

Tags: int program cti for method etc number CTO ESET1. After you have created the sqlsessionfactory, you will then configure the creation of the sqlsession. BeanID= "Simpletempalte"class= "Org.mybatis.spring.SqlSessionTemplate"> Constructor-argIndex= "0"ref= "Sqlsessionfactory" /> Constructor-argIndex= "1"value= "simple" /> Bean> Construction parameters, including Sqlsessionfactory objects, and Executortype (simple) 2. Sqlsess

A colleague creates an instance on Oracle 10g, and at the end of the page, an error pops up, prompting for a failed listener. View the service without generating a listening service. So I deleted it, tried it several times, and so on.It's really upsetting. The hint says port 1521, is this port occupied? With the Netstat-aon command looked down, and did not. And there is no place to set up the port during the creation of the instance.Later, the net man

script, you need to execute it under NomountSql> @/home/oracle/dbcreate_zofx.sql ---Query the database state and confirm that the creation was successful.Sql> select Instance_name,status from V$instance;Col Tablespace_name for A10Col Tablespace_file for A60Select A.name tablespace_name,b.name tablespace_file from v$tablespace a,v$datafile b where a.ts#=b.ts#; 9. Execute a data dictionary script@?/rdbms/admin/catalog.sql@?/rdbms/admin/catproc.sql@?/sq

Creation, invocation, and syntax of stored procedures in MySQLThe MySQL stored procedure is a new feature that has been added since MySQL 5.0. The advantages of a stored procedure are a whole bunch. But the main thing is the execution efficiency and the SQL code encapsulation . In particular, the SQL Code encapsulation feature, if there is no stored procedure, when the external program accesses the database (for example, PHP), to organize a lot of SQL

) engine = InnoDB Default charset = Utf8create index index7_id on EXAMPLE0 (ID)--Create an index named INDEX7_ID in example ID column On show CREATE TABLE Example0650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M01/7F/FB/wKioL1cz0sSxwpOXAAAyOg-PEaw413.png "title=" Create a normal index on an existing table. png "alt=" Wkiol1cz0ssxwpoxaaayog-peaw413.png "/>--Modify the table to create a unique index--for the author pits, in the video, some of the tables in the book is not defined in the di