where({ email: (first_name, last_name) => { return `${first_name} || '.' || ${last_name} || '@gmail.com'` } }) .select(); Important: Field names are aliased by the query composer during query generation, so please use the above format to make sure the correct column ...
class User(db.Model): __tablename__ = "users" id = db.Column(db.Integer, primary_key=True) email = db.Column(db.String(128), unique=True, nullable=False) active = db.Column(db.Boolean(), default=True, nullable=False) def __init__(self, email): self.email = email This only...
Assign a Column name from a dataTable to a table header cell in a table control assign html text box value from code behind using c# Assigning null to an array if array is empty Asynchronous operations are not allowed in this context. Attachment File Path while Sending Email using C# and ...
The name of the partition that's being split. new_part1 The name of the first partition to create. Partition names must be unique among all partitions and subpartitions and must follow the naming conventions for object identifiers. new_...
> whose name starts with "measurement". Depending on your naming > conventions, that might be close enough. > > It does seem like there might be reason to have a switch along > the lines of "--include-child-tables". That would be great, but won't help me in v12. ...
Right now you get ?column? ---foo\u0000bar (1 row) Which is wrong IMO, first because it violates the premise that the output should be unescaped, and second because this output cannot be distinguished from the (correct) output of regression=# select (jsonb '["foo\\u0000bar"]')->>...
Somewhat related to the first drawback, the schema for this table is not optimal as thehashidcolumn should really have a NOT NULL constraint with a UNIQUE index. But using Rails callbacks forces it to be this way. It would be much more preferable if we could lean on the database to en...
Well mostrelational databasesI can think of nowadays have richer types: e.g. PostgreSQL, Oracle and Firebird all support arrays as a column type. Some even allow you to define custom types and functions to support your custom types e.g. PostgreSQL (I could go on forever), Oracle has rich...
Somewhat related to the first drawback, the schema for this table is not optimal as thehashidcolumn should really have a NOT NULL constraint with a UNIQUE index. But using Rails callbacks forces it to be this way. It would be much more preferable if we could lean on the database to en...
activities each person is involved in. You want to return a result that has one record per person and a column that has a listing of activities for each person separated by semicolons and alphabetically sorted by activity. You also want the whole set alphabetically sorted by person's name....