oracle to postgres migration

varchar length of 200, and the field of most of the existing data length of the row is basically 180 bytes, then the table Imports UTF8 encoded database, The field originally stored in most of the 180-byte Chinese characters, you need to 180*3/2=270 bytes of character length to normal storage, and at this time when performing the IMPDP import operation, the table structure will not change, that is, the original field definition colum001 length or maintain 200 , so when the import, will be error

recently encountered a requirement to migrate data from a subset of the tables in Oracle to a SQL Server database. But the structure of these tables is somewhat different. method one, using the SQL Develper Data Export tool, export the SQL INSERT statement, and then manually modify some of the details, and finally put in the SQL Executed in the server. because the structure of the table before and after the difference, I need a statement to delete

('views and sequences'); forR_view_seqinchc_view_seq LOOP sqlstr:= 'Grant Select on UserA.' ||R_view_seq.object_name || 'to UserB;'; Dbms_output.put_line (SQLSTR); Executeimmediate sqlstr; ENDLOOP; --Create synonymsDbms_output.put_line ('Create synonyms!'); forR_syninchc_synonym LOOPBEGINsqlstr:=R_syn.syn_drop; Dbms_output.put_line (SQLSTR); EXECUTEIMMEDIATE sqlstr; SQLSTR:=r_syn.syn_create; Dbms_output.put_line (SQLSTR); EXECUTEIMMEDIATE sqlstr; E

has been using Oracle, recently studied the next MySQL, first listed MySQL strange features1. The time of millisecond accuracy cannot be stored.2. If there is a varchar, char will automatically become Varhar.3. Timestamp time range is smaller than datatime, accuracy is the same, and even if you do not insert/update, its value will automatically change.4. No sequence can be used.Here's the next step.First you have to have a MySQL, if not please refer t

Objective: To resolve the system migration from Oracle to Sybase. Command Overview: C:\Documents and Settings\newuesr>isql-help Syntax Error in '-help '. Usage:isql [-b] [-e] [-f] [-p] [-n] [-v] [-X] [-y] [-Q] [-A Display_charset] [-A Packet_size] [-C Cmdend] [-D database] [-E Editor [-H header [-H hostname [-i inputfile] [I. Interfaces_file] [-j Client_charset] [k Keytab_file] [-L Login_timeout] [M

Create or replace procedure Remove_refund_his_pro isBeginDeclareCursor Refund_query_cur isSelect rowID from Ucmp_realtime_refund_query t1where t1.apply_tmTYPE Rowid_table_type is table of ROWID index by Pls_integer;V_rowid Rowid_table_type;BeginOpen refund_query_cur;LoopFetch refund_query_cur Bulk collect into V_rowid limit 100000;Exit when v_rowid.count=0;ForAll i in V_rowid.first. V_rowid.lastINSERT into His_realtime_refund_query(SELECT * from Ucmp_realtime_refund_queryWHERE rowID = V_rowid (i