We have a table (let us call it originalTbl) that has duplicate entries that we want to delete. By duplicate I mean all values other than an AUTO INCREMENT index field are the same. One way to do this is to create a new table, like the existing table (let us call it uniqueTbl), and then have a query like:
Tag: sql-delete
mysql query question about removing data from columns
This is what the table looks like right. I only want to delete the data in the two columns on the right. So let’s say i want to delete the first row Aheadworks_AdvancedSearch columns on the right. I’m sorry i’m horrible in mysql. Would this be the right syntax? How can i combine as well? Answer As commented by Strawberry,
SQLite how to use UPDATE and LIMIT at the same time?
What I’m looking for is to update only 1 row in a table where all the entries are, in the beginning, zero. After a while surfing the internet for answers, I found out that LIMIT should work fine with UPDATE, but also not quite. From what I’ve seen, I should have “enabled” some stuff with SQLITE_ENABLE_UPDATE_DELETE_LIMIT, but I have no
How to select different values in a column with the same ID and then delete them PHP SQL Server
I am new to the world of programming. I am in need of help in this sentence. what I want to do is select the 0.1,2 values from the CardIndex column and then be able to delete them. Rows must be removed as long as the condition is met. Or what would be the best way to do it. CardIndex
Delete rows depending on values from another table
How to delete rows from my customer table depending on values from another table, let’s say orders? If the customer has no active orders they should be able to be deleted from the DB along with their rows (done using CASCADE). However, if they have any active orders at all, they can’t be deleted. I thought about a PLPGSQL function,
On delete Error: SQL Error: ORA-00933: SQL command not properly ended
I’m trying to delete a student record from the database using the below query. But I face this error. Error report – SQL Error: ORA-00933: SQL command not properly ended 00933. 00000 – “SQL command not properly ended” Answer Give this a shot to delete student record for which there exists an enrollment. If you are interested in deleting a
How to combine two records while keeping all referencing records?
PostgreSQL 11.1 I have struggled with this problem for a long time. (I have tried to improve the question from before). Problem: A person has two different names in table tempA. Each name has its associated records in table tempB. How can I move all the records associated with one name to the other name, then delete the name? Example:
Delete registers with rownumber greater than specified for each group got from sql
I have a table of people with their commments on a blog . I need to leave the last 10 comments for each person in the table and delete the older ones. Lets say the columns are: personId commentId dateFromComment I know how to do it with several queries but not with just one query(any subqueries allowed) and for anyDatabase
Delete records referenced by other records in different tables
I have a following requirement: I need to delete records from one table based on the given ID, now this table is referenced by another table and that other table is referenced by yet another table and that last table is also referenced by another table, so I have a chain like this: table_1 <- table_2 <- table_3 <- table_4
How to delete duplicate rows in a table based on what is supposed to be a unique column referring to a table in another database
In Table A PersonID refers to Table B another database and is supposed to be unique here. For reasons, it isn’t and a stored procedure that uses PersonID and FacilityID as input parameters is returning multiple rows for the instances of that duplicate PersonID. I would like to remove the top record in Table A as it does not belong