[Oracle] Oracle Series Seventeen--Sqluldr2 and Sqlldr

Review of past issues

• [Oracle] One of the Oracle series – Oracle data type

• [Oracle] Oracle Series 2 – Oracle Data Dictionary

• [Oracle] Oracle series three – Oracle character set

• [Oracle] Oracle Series 4 – User Management

• [Oracle] Oracle Series 5 – Oracle Table Space

• [Oracle] Oracle Series Six – Oracle Table Partitioning

• [Oracle] Oracle Series 7 – Table Creation and Management

• [Oracle] Oracle Series 8 – SQL Query

• [Oracle] Oracle Series 9 – Oracle Common Functions

• [Oracle] Oracle Series 10 – Oracle Regular Expressions

• [Oracle] Oracle Series 11 – PL/SQL

• [Oracle] Oracle series no. 12 – views, records, synonyms, sequences

• [Oracle] Oracle Series Thirteen – Cursor

• [Oracle] Oracle Series Fourteen – Trigger

• [Oracle] Oracle Series 15 – Stored Procedure

• [Oracle] Oracle Series 16 – Database Backup

1. Sqluldr2 export text

Sqluldr2 is a flexible and powerful Oracle text export program. The main parameters are as follows:

• user = username/password@tnsname
• sql = SQL file name
• query = select statement
• field = separator string between fields
• record = separator string between records
• rows = print progress for every given rows (default, 1000000)
• file = output file name(default: uldrdata.txt)
• log = log file name, prefix with + to append mode
• fast = auto tuning the session level parameters(YES)
• text = output type (MYSQL, CSV, MYSQLINS, ORACLEINS, FORM, SEARCH).
• charset = character set name of the target database.
• ncharset= national character set name of the target database.
• parfile = read command option from parameter file
  Use sqluldr2 help=yes to view more parameter descriptions.

e.g

sqluldr2 data/data@orcl 
        query="select * from sx_table" 
        parfile=d:\exp.par 
        file=d:\sx_table.txt

The contents of exp.par are as follows:

head=yes
batch=yes
safe=yes
rows=3000000
record=0x0d0x0a

A control file named "sx_table_sqlldr.ctl" will be generated in the current directory. Through this control file, SQL*Loader can be used to load data into the sx_table table.

2. Sqlldr import text

Sqlldr (SQL*Loader) is used by Oralce to load text files into the database.

sqlldr userid=test/test@orcl 
       readsize=33554432 
       streamsize=33554432
       date_cache=10000000 
       direct=true 
       skip_index_maintenance=true
       skip_unusable_indexes=true 
       multithreading=true 
       errors=10000000 
       skip=1 
       log="d:\load.log" 
       control="d:\sx_table_sqlldr.ctl"
       data="d:\sx_table.txt"