MySQL Alter table causes Error: Invalid use of NULL value












47















My existing table:



+-----------------+---------------+------+-----+---------+-------------------+
| Field | Type | Null | Key | Default | Extra |
+-----------------+---------------+------+-----+---------+-------------------+
| creation_date | timestamp | YES | | NULL |


I wanted to alter table like this:



ALTER TABLE enterprise MODIFY creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;


But I got this error:



ERROR 1138 (22004) at line 7: Invalid use of NULL value



The problem looks like from changing the Nullable which was YES to NOT NULL. Do I need to drop the column and add afterwards?










share|improve this question



























    47















    My existing table:



    +-----------------+---------------+------+-----+---------+-------------------+
    | Field | Type | Null | Key | Default | Extra |
    +-----------------+---------------+------+-----+---------+-------------------+
    | creation_date | timestamp | YES | | NULL |


    I wanted to alter table like this:



    ALTER TABLE enterprise MODIFY creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;


    But I got this error:



    ERROR 1138 (22004) at line 7: Invalid use of NULL value



    The problem looks like from changing the Nullable which was YES to NOT NULL. Do I need to drop the column and add afterwards?










    share|improve this question

























      47












      47








      47


      9






      My existing table:



      +-----------------+---------------+------+-----+---------+-------------------+
      | Field | Type | Null | Key | Default | Extra |
      +-----------------+---------------+------+-----+---------+-------------------+
      | creation_date | timestamp | YES | | NULL |


      I wanted to alter table like this:



      ALTER TABLE enterprise MODIFY creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;


      But I got this error:



      ERROR 1138 (22004) at line 7: Invalid use of NULL value



      The problem looks like from changing the Nullable which was YES to NOT NULL. Do I need to drop the column and add afterwards?










      share|improve this question














      My existing table:



      +-----------------+---------------+------+-----+---------+-------------------+
      | Field | Type | Null | Key | Default | Extra |
      +-----------------+---------------+------+-----+---------+-------------------+
      | creation_date | timestamp | YES | | NULL |


      I wanted to alter table like this:



      ALTER TABLE enterprise MODIFY creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;


      But I got this error:



      ERROR 1138 (22004) at line 7: Invalid use of NULL value



      The problem looks like from changing the Nullable which was YES to NOT NULL. Do I need to drop the column and add afterwards?







      mysql






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Apr 9 '14 at 18:56









      Daniel QiuDaniel Qiu

      6011817




      6011817
























          2 Answers
          2






          active

          oldest

          votes


















          80














          It looks like there are few rows with NULL value.Update all null values to a default date in that column and then try to do a alter.



          Try this



          --update null value rows
          UPDATE enterprise
          SET creation_date = CURRENT_TIMESTAMP
          WHERE creation_date IS NULL;


          ALTER TABLE enterprise
          MODIFY creation_date TIMESTAMP NOT NULL
          DEFAULT CURRENT_TIMESTAMP;





          share|improve this answer































            4















            You can't use this query until you have NO NULL values in the creation_date
            column.




            Update your creation_date column with some default date and then alter the table.



            Like this



            UPDATE enterprise SET creation_date = CURRENT_TIMESTAMP WHERE creation_date IS NULL;

            ALTER TABLE enterprise MODIFY creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;





            share|improve this answer





















            • 2





              Late comment but I'm guessing that should be either you can't use as long as you have NULL values or until you haven't got any NULL values. Otherwise there wouldn't be an issue.

              – thisisboris
              Jul 18 '16 at 15:15











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            2 Answers
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            2 Answers
            2






            active

            oldest

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            active

            oldest

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            active

            oldest

            votes









            80














            It looks like there are few rows with NULL value.Update all null values to a default date in that column and then try to do a alter.



            Try this



            --update null value rows
            UPDATE enterprise
            SET creation_date = CURRENT_TIMESTAMP
            WHERE creation_date IS NULL;


            ALTER TABLE enterprise
            MODIFY creation_date TIMESTAMP NOT NULL
            DEFAULT CURRENT_TIMESTAMP;





            share|improve this answer




























              80














              It looks like there are few rows with NULL value.Update all null values to a default date in that column and then try to do a alter.



              Try this



              --update null value rows
              UPDATE enterprise
              SET creation_date = CURRENT_TIMESTAMP
              WHERE creation_date IS NULL;


              ALTER TABLE enterprise
              MODIFY creation_date TIMESTAMP NOT NULL
              DEFAULT CURRENT_TIMESTAMP;





              share|improve this answer


























                80












                80








                80







                It looks like there are few rows with NULL value.Update all null values to a default date in that column and then try to do a alter.



                Try this



                --update null value rows
                UPDATE enterprise
                SET creation_date = CURRENT_TIMESTAMP
                WHERE creation_date IS NULL;


                ALTER TABLE enterprise
                MODIFY creation_date TIMESTAMP NOT NULL
                DEFAULT CURRENT_TIMESTAMP;





                share|improve this answer













                It looks like there are few rows with NULL value.Update all null values to a default date in that column and then try to do a alter.



                Try this



                --update null value rows
                UPDATE enterprise
                SET creation_date = CURRENT_TIMESTAMP
                WHERE creation_date IS NULL;


                ALTER TABLE enterprise
                MODIFY creation_date TIMESTAMP NOT NULL
                DEFAULT CURRENT_TIMESTAMP;






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Apr 9 '14 at 19:00









                rs.rs.

                20.4k75280




                20.4k75280

























                    4















                    You can't use this query until you have NO NULL values in the creation_date
                    column.




                    Update your creation_date column with some default date and then alter the table.



                    Like this



                    UPDATE enterprise SET creation_date = CURRENT_TIMESTAMP WHERE creation_date IS NULL;

                    ALTER TABLE enterprise MODIFY creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;





                    share|improve this answer





















                    • 2





                      Late comment but I'm guessing that should be either you can't use as long as you have NULL values or until you haven't got any NULL values. Otherwise there wouldn't be an issue.

                      – thisisboris
                      Jul 18 '16 at 15:15
















                    4















                    You can't use this query until you have NO NULL values in the creation_date
                    column.




                    Update your creation_date column with some default date and then alter the table.



                    Like this



                    UPDATE enterprise SET creation_date = CURRENT_TIMESTAMP WHERE creation_date IS NULL;

                    ALTER TABLE enterprise MODIFY creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;





                    share|improve this answer





















                    • 2





                      Late comment but I'm guessing that should be either you can't use as long as you have NULL values or until you haven't got any NULL values. Otherwise there wouldn't be an issue.

                      – thisisboris
                      Jul 18 '16 at 15:15














                    4












                    4








                    4








                    You can't use this query until you have NO NULL values in the creation_date
                    column.




                    Update your creation_date column with some default date and then alter the table.



                    Like this



                    UPDATE enterprise SET creation_date = CURRENT_TIMESTAMP WHERE creation_date IS NULL;

                    ALTER TABLE enterprise MODIFY creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;





                    share|improve this answer
















                    You can't use this query until you have NO NULL values in the creation_date
                    column.




                    Update your creation_date column with some default date and then alter the table.



                    Like this



                    UPDATE enterprise SET creation_date = CURRENT_TIMESTAMP WHERE creation_date IS NULL;

                    ALTER TABLE enterprise MODIFY creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP;






                    share|improve this answer














                    share|improve this answer



                    share|improve this answer








                    edited Nov 14 '18 at 5:05









                    Joshua Pinter

                    24.4k8138166




                    24.4k8138166










                    answered Apr 9 '14 at 18:59









                    Vignesh Kumar AVignesh Kumar A

                    18.6k103984




                    18.6k103984








                    • 2





                      Late comment but I'm guessing that should be either you can't use as long as you have NULL values or until you haven't got any NULL values. Otherwise there wouldn't be an issue.

                      – thisisboris
                      Jul 18 '16 at 15:15














                    • 2





                      Late comment but I'm guessing that should be either you can't use as long as you have NULL values or until you haven't got any NULL values. Otherwise there wouldn't be an issue.

                      – thisisboris
                      Jul 18 '16 at 15:15








                    2




                    2





                    Late comment but I'm guessing that should be either you can't use as long as you have NULL values or until you haven't got any NULL values. Otherwise there wouldn't be an issue.

                    – thisisboris
                    Jul 18 '16 at 15:15





                    Late comment but I'm guessing that should be either you can't use as long as you have NULL values or until you haven't got any NULL values. Otherwise there wouldn't be an issue.

                    – thisisboris
                    Jul 18 '16 at 15:15


















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