convert oracle to mysql

I have been trying to solve this problem for a long time, but it may not be able to solve it yet, but at least list the feasible methods I have struggled to and the methods I have tried, let everyone take a closer look Dbconvert for MSSQL and MySQL tools should be used at the earliest, but I don't know why I cannot connect to my MSSQL. It may be 2005. The link 2000 seems to be very OK, because I tested that the connection to the virtual host mssql20

Group_concat () is a function provided by the MySQL database. It is usually used together with group by. For details, refer to the MySQL official document: commit. Syntax: Group_concat ([distinct] expr [, expr...] [order by {unsigned_integer | col_name | expr} [ASC | DESC] [, col_name...] [separator str_val])1. For example:Select student_id, group_concat (courses_id) as courses from student_courses wher

Today I want to use Ruby on Rails to do a small project, need to use the MySQL database, the project's data has been, but is stored in SQL Server, with rails can operate SQL Server, but the total feeling does not match, want to convert to use, the internet turned down, There are many ways to convert, through ODBC, through the PHP program, write the SQL code, thin

First, the CONVERT functionCharacter Set conversions: convert (XXX USING gb2312) type conversions are the same as SQL Server, but differ on type parameters: CAST (xxx as type), convert (XXX, type), type must be of the following type:Available type binary with binary prefix effect: binary character type, parameter: CHAR () Date: Date Time: Time datetime type: DATE

MySQL 5.1 Upgrade compile install 5.6 Convert the original MyISAM table to InnoDB and back up the global one at a time1."Backup specified database" Do not use commas mydb hellodb[Email protected] ~]# mysqldump-uroot-p--databases mydb hellodb >/tmp/all.sql"Modify Engine=myisam to Engine=innodb"[[email protected] home]# CP hellodb.sql hellodb.sql.bak[[email protected] home]# vim hellodb.sql:%s/engine=myisam/

Mysql varchar sorting CAST, CONVERT function type conversion, varcharconvert When creating a table on your own, you should create a field type as varchar (2). In fact, it should be set as integer (2). But today, we found a Sorting Problem in the background and a varchar Sorting Problem, so how can this problem be solved? Example Table Structure: Let's take a look, my table structure show create table cards

Innodb:foreign key constraint system tables created 101001 21:04:31 innodb:started; Log sequence number 0 0 101001 21:04:32 [note] D:\mysql5\bin\mysqld-nt:ready for connections. Version: ' 5.0.18-nt ' socket: ' port:3306

Tags: http color ar div code SP on time lineMySQL's cast () and CONVERT () functions can be used to get a value of one type and produce a value of another type. The specific syntax for both is as follows: 1 CAST(valueastype); 2 CONVERT(value, type); is cast (xxx as type), CONVERT (XXX, type).There i

Tags: style http color ar sp div on code timeMySQL's cast () and CONVERT () functions can be used to get a value of one type and produce a value of another type. The specific syntax for both is as follows:View Source print? 1 CAST(value astype); 2 CONVERT(value, type); is cast (xxx as type), CONVERT

Tags: mysql myisam innodb1.BACKUP database: Mysqldump-u[user]-p[password] [databasename] > [dbfile.sql] # Back up the database. 2./usr/local/mysql/bin/mysqladmin-u root-p Shutdown #Stop the database orservice MySQL stop. 3. InnoDBThe table does not support full-text search, so remember to fulltext the backed-up database SQL and delete the index about fulltext. 4.

How to use MySQL functions to convert IP addresses and numbers Use MySQL built-in functions to convert IP addresses and numbers Using two built-in functions Inet_aton: converts an IP address to a number. Inet_ntoa: convert a numeric type to an IP address Make full u

MySQL4.1 supports encoding, so it is a little troublesome to convert old data. However, you only need to pay attention to the following: 1. dump the original data before conversion. Generally, the original data is encoded in gb2312 format. The dump command is as follows: MySQLdump -u -p database –add-drop-table –extended-insert -Add-drop-table is used to avoid table creation during import.-extended-insert is used to prevent an SQL sta

Find a good way to convert from SQLServer to Mysql database Find a good way to convert from SQLServer to Mysql database At the beginning of the year, I had been working on the migration of a website MSSQL2000-> MySQL5. Because different program systems were used, the main problem was data migration. Because the struct

This article describes how to convert xml and mysql data in php. the instance encapsulates a class file to convert XML and MySQL data, it has some reference value. if you need it, you can refer to the following example to describe how to convert xml and

This article describes how to convert xml and mysql data in php. the instance encapsulates a class file to convert XML and MySQL data, it has some reference value. if you need it, you can refer to the following example to describe how to convert xml and

MySQL turns timestamps into common time formatsIn MySQL, the storage type of a time field is int (11), and how to convert it into a character type, for example, to store 13270655222, needs to be converted to YYYY-MM-DD form.Use the From_unixtime function, as follows:From_unixtime (Unix_timestamp,format)Returns a String representing the Unix time token, formatted

Emeditor or iconv to convert the file encoding to UTF-8. Be sure not to use the Unicode signature(bom#", because mysql.exe does not recognize it. Replace gbk_bin in the file with utf8_general_ci, replace gbk with utf8, and add: Set names utf8; With BOM, MySQL does not recognize the following errors: ERROR 1064 (42000) at line 1:You have an error in your SQL syntax; check the manua

PHP in the implementation of XML and MySQL data conversion between the method, Xmlmysql In this paper, we explain how to convert XML to MySQL data in PHP. Share to everyone for your reference. The specific analysis is as follows: Here is a mysql2xml conversion class that can quickly convert the XML to

Document directory Answer Http://blog.csdn.net/pjchen/archive/2008/04/19/2308245.aspx Use hibernate to connect to the database of mysql5. Since the table uses a datetime time period, the following Java. SQL. sqlexception: cannot convert value '2017-00-00 00:00:00 'from Column 9 to timestamp.At com. MySQL. JDBC. resultset. gettimestampfrombytes (resultset. Java: 6864)At com.

format: select FROM_UNIXTIME (1156219870 ); 2. convert a date to a UNIX timestamp using the function: UNIX_TIMESTAMP () General format: Select UNIX_TIMESTAMP ('2017-11-04 12:23:00 ′); Example: mysql queries the number of records on the current day: $ SQL = "select * from message Where DATE_FORMAT (FROM_UNIXTIME (chattime), '% Y-% m-% d') = DATE_FORMAT (NOW (), '% Y-% m-% d') order by id desc "; Of cou