Question

I am having trouble getting things moved in a database. I have two tables with different column names the one that is the same name is “zip” but they have the same data. I want to move from table A to table b if the zip code doesn’t already exist in table b. I am using mysql command line.

Answer 1

USe INSERT INTO....SELECT

INSERT INTO TableB(colName)
SELECT colName 
FROM    TableB b
        LEFT JOIN TableA a
            ON a.colName = b.colName
WHERE   a.colName IS NULL

TableA.colName will be NULL if it does not exists on TableB. just change colName to the columns names in your tables.

UPDATE 1

INSERT INTO skadate_location_city
    (
        Feature_int_id,
        Admin1_str_code,    
        Country_str_code,
        Feature_dec_lat,    
        Feature_dec_lon,
        zip
    )
SELECT  
        a.city_id     AS Feature_int_id,
        a.state_id    AS Admin1_str_code, 
        a.country_id  AS Country_str_code,
        a.latitude    AS Feature_dec_lat,
        a.longitude   AS Feature_dec_lon,
        a.zip
FROM    skadate_location_zip a
        LEFT JOIN skadate_location_city b
            ON a.zip = b.zip
WHERE   b.zip IS NULL