如何提高 netezza 插入语句过程

Question

我正在将数据从 Oracle 复制到 Netezza。我有几千行，使用一次插入一行将所有这些数据输出到 netezza 中花费的时间太长了。我怎么能提高这个？

copyToChidDatabaseColumnInfo(rs.getString("OWNER"), rs.getString("TABLE_NAME"), rs.getString("COLUMN_NAME"));

// this is what it is within the copyToChidDatabaseColumnInfo method: 

PreparedStatement pstmt = ChildConnection.prepareStatement("INSERT INTO DATABASE_COLUMN_INFO (OWNER_NAME, TABLE_NAME, COLUMN_NAME, SYSTEM_ID, PLATFORM) VALUES (?,?,?,?,?)");
            pstmt.setString(1,owner);
            pstmt.setString(2,tbname);
            pstmt.setString(3,columnname);
            pstmt.setString(4,parentSYSTEM_ID);
            pstmt.setString(5,parentPlatform);
            pstmt.execute(); 
            pstmt.close();

Answer 1

建议：

INSERT INTO DATABASE_COLUMN_INFO (nullcolumn, OWNER_NAME, TABLE_NAME, COLUMN_NAME, SYSTEM_ID, PLATFORM)
SELECT null, OWNER_NAME, TABLE_NAME, COLUMN_NAME, SYSTEM_ID, PLATFORM
FROM EXTERNAL 'table_info.csv'
(
OWNER_NAME varchar(500)
 ,TABLE_NAME  varchar(500)
 , COLUMN_NAME  varchar(500)
 , SYSTEM_ID  varchar(500)
 , PLATFORM  varchar(500)

)
USING (delimiter ',' REMOTESOURCE 'jdbc' LOGDIR 'C:\temp' skiprows 1 maxerrors 0 fillrecord true)

如何提高 netezza 插入语句过程

How to boost up netezza insert statement process

java

oracle

netezza