convert oracle to mysql

Several Methods to convert a common Oracle table to a partitioned tableThere are four ways to convert a normal table to a Partition table: 1) Export/import method 2) Insert with a subquery method 3) Partition exchange method (SWAP Partition) 4) DBMS_REDEFINITION (online redefinition) Steps for exchanging partitions: 1) create A partition table, assuming there are

Oracle rows and columns convert column names if they are numbers, enclose the following in double quotation marks:--Build a tableCREATE TABLE Workinfo(WID Integer PRIMARY key,Sid Integer,CONSTRAINT SID foreign Key (SID) references student (SID),City Nvarchar2 (,--) Employment citiesWage number (10,2),--monthly SalaryWorkdate Date,--Employment timeEid Integer,CONSTRAINT Eid foreign Key (Eid) references Emp (

Recently, I decided to transfer the MT background data from the Berkeley file DB to MySQL. One of the reasons is that relational databases can provide more flexibility, such as running an SQL statement to change a certain attribute of all entries. The other reason is to familiarize yourself with the database in advance, the dental website uses a virtual host. The database provided by DreamHost is MySQL. I u

Label:If the C_xml field in the tab table turns out to be a blob type, we will convert it to the CLOB type, and if there is data in the table, it cannot be modified directly through the alert statement. You can change the field of a BLOB type to the CLOB type by using the following method. First create a function in Oracle with the following code: --Create the function of the blog converted to CLOB first CR

The following article mainly introduces how to use Oracle SQL statements to convert between systems. This article uses the actual code to implement conversions between systems. Based on the actual example, you can change the base number of power to the corresponding base number. The following describes Oracle SQL statements: This article is just an example. You c

Convert String to CLOB in the project/** * Convert String to CLOB.* @ Author ZhaoHr* @ Param sort* @ Throws ClassNotFoundException* @ Throws SQLException*/@ SuppressWarnings ("unused ")Public int insertSortWithStr2CLOB (Sort sort) throws ClassNotFoundException, SQLException {// TODO Auto-generated method stubDriverManager. registerDriver (new OracleDriver ());String url = "jdbc:

Environment Description:Photo: User Picmgr stored in the production library, database version oracle10g;Purpose: The photo is directed to the local path D:\image , and the storage format is jpg .First step: Install the oracle11g database version locallyNote: Oracle version does not matter, 10g, 11g are OK,The key is the database version.Create a DBA user named Tonytonytony (the user name comes with you).Use user Tonytonytony to create a directory (Ima

AnimalID Name1 dog1 cat2 LionHow do I get the name list with the same ID? That is, you want the list of ID 1 to be dog, cat format.1. First Oracle has a method, Wm_concat ()Select a.ID, Wm_concat (a.name) as Namelistfrom animal Agroup by a.ID But unfortunately, this method is now out of support. 2. The second method is Xmlagg () Select a.ID, (RTrim (Xmlagg (XmlElement ("xml", a.name| | ', ') Order by a.id). Extract ('//text () '), ', ') as NamElistfro

Milliseconds converted to date SELECT TO_CHAR(1406538765000 / (1000 * 60 * 60 * 24) + TO_DATE(‘1970-01-01 08:00:00‘, ‘YYYY-MM-DD HH:MI:SS‘), ‘YYYY-MM-DD HH24:MI:SS‘) AS CDATE FROM DUAL; Date conversion milliseconds SELECT TO_NUMBER(TO_DATE(‘2014-07-28 17:12:45‘, ‘YYYY-MM-DD HH24:MI:SS‘) - TO_DATE(‘1970-01-01 8:0:0‘, ‘YYYY-MM-DD HH24:MI:SS‘)) * 24 * 60 * 60 * 1000 FROM DUAL; Get the information for a day sele

The following articles mainly introduce how to use MySQL built-in functions to convert IP addresses and related numbers. In actual operations, when processing character formats, such as converting 54789, we only need to use: format (12345, 0). The following describes the specific content. Use MySQL built-in functions to conve