将大量数据从一个表插入到另一个表

Question

I have a scenario. I have data of 10000 in my table A. I need some of the data to be copied to table B. Currently, iam doing inner join by comparing 3 columns and doing. But most of the times my database crashes

What is the efficient way of comparing and doing that?

Here is the query I am using:

SELECT * 
FROM CONTENT_WORKFLOW_STAGING AS CWS
    INNER JOIN CONTENT_WORKFLOW_MASTER CWM 
        ON CWM.PROGRAM_ID = CWS.PROGRAM_ID 
            AND CWM.SOURCE_GROUP_NAME = CWS.SOURCE_GROUP_NAME 
            AND CWM.COPY_CULTURE = CWS.COPY_CULTURE
            AND CWM.USER_LOCKED = 0
            AND CWS.IS_PROCESSED = 0
WHERE CWS.INTERNAL_TRANSACTION_ID="cea56114-bf6c-46c5-ac67-edbdf67‌​6a86d" 
    AND CWS.GUID="xxx";

Answer 1

CWS needs INDEX(INTERNAL_TRANSACTION_ID, GUID)

CWM needs INDEX(PROGRAM_ID, SOURCE_GROUP_NAME, COPY_CULTURE)

If you need to discuss further, please provide SHOW CREATE TABLE for both tables.