Questions tagged [row]

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58
votes
8answers
27k views

What is the difference between a “record” and a “row” in SQL Server?

There was a rather innocuous question about adding dates and times in SQL Server that set off a rather fascinating taxonomic debate. So how do we differentiate between these related terms and how we ...
23
votes
6answers
59k views

Select columns inside json_agg

I have a query like: SELECT a.id, a.name, json_agg(b.*) as "item" FROM a JOIN b ON b.item_id = a.id GROUP BY a.id, a.name; How can I select the columns in b so I don't have b.item_id in the ...
9
votes
5answers
42k views

Calculate row value based on previous and actual row values

Hi everyone and thanks for your help. I have the following situation: a table called statements that contains fields id(int), stmnt_date(date), debit(double), credit(double) and balance(double) I ...
23
votes
4answers
22k views

How to limit maximum number of rows in a table to just 1

I have a configuration table in my SQL Server database and this table should only ever have one row. To help future developers understand this I'd like to prevent more than one row of data being added....
0
votes
1answer
2k views

Array of strings when updating a field

Unintentionally discovered that following query works in PostgreSQL: UPDATE "sometable" SET "somefield" = ('string1', 'string2') WHERE "id" = 1; I'm passing an array of strings to field and the ...
0
votes
2answers
541 views

Replication error from Mariadb 10.1 to Mysql 5.1/5.0/5/5 when master's logging format is set to row based

While replicating from Mariadb 10.1 to MySQL (5.0, 5.1, 5.5) or Mariadb (5.2, 5.5) lower versions, if master's binlog_format is set to row, the replication failure occurs with the following message ...
6
votes
2answers
239 views

Create smaller row from alias and preserve column names

Using Postgres: SELECT users."name" AS "name" , array_to_json(array_agg(sites)) as sites FROM remodel.users AS users JOIN remodel.user_sites AS user_sites ON users.id=user_sites.user JOIN ...