Database Migration from MySQL to RDM Server - Embedded Tools ...

Migration GuideDELETEThe DELETE statement in MySQL deletes rows from the specified table and returns a count of thenumber of deleted rows. MySQL extends the statement with keywords such as QUICK (where theindex leaves are not merged during DELETE) and LIMIT (which limits the number of rows to delete).RDM Server supports the core DELETE statement, but not those MySQL extensions.Supported:Necessary:YesYesDOThe DO statement in MySQL executes the expressions but does not return any results. RDM Serverdoes not support it.Supported:Necessary:NoNoHANDLERThe HANDLER statement in MySQL provides direct access to table storage engine interfaces. It isavailable for MyISAM and InnoDB tables. Naturally, RDM Server does not support it.Supported:Necessary:NoNoINSERTThe INSERT statement in MySQL inserts new rows into an existing table. The INSERT … VALUESstatement works identically to that of RDM Server. The INSERT … SET statement can be replacedeasily with INSERT … VALUES with specific column names. RDM Server does not support MySQLextensions such as INSERT DELAYED and INSERT IGNORE.Supported:Necessary;YesYesLOAD DATA INFILEThe LOAD DATA INFILE statement in MySQL reads rows from a text file into a table. The RDM Serverequivalent is INSERT … FROM (ASCII) FILE. The LOAD DATA INFILE statement allows for moreflexibility than our INSERT … FROM FILE when selecting particular sections of the file to be read andinserted.Supported:Necessary:YesYesLOAD XML INFILEThe LOAD XML INFILE statement in MySQL reads data from an XML file into a table. The RDM Serverequivalent is INSERT … FROM XML FILE. The same issue with flexibility found in LOAD DATA INFILEexists here.Supported:Necessary;YesYeshttp://www.raima.comPage | 9