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When you provide a default value for a field in Access, Access will automatically insert this value into the field when a record is inserted that has no value (NULL) for this field. Default values are used when there is a sensible default for a field.
NAT default timeout value is 5 minutes.
in integral data types default value=0 in decimal type default value is 0.0 in boolean default value is fa
I'm not sure. I have written C programs in which the default value was what ever happened to be in the variable's memory location when the space was allocated. So it could be 0. Or it could be anything. That is why it is always important to initialize variables when using C. I don't know if this is true with modern C compilers. No default value for automatic variables, 0 for others.
When you create a table, you can specify a DEFAULT value for each column which will be applied in the absence of an explicit value. For example; create table MYTABLE ( ID int, NAME varchar(40), TYPE int NULL DEFAULT 0) go insert into MYTABLE (ID, NAME) values (1,'record one') Although a value hasn't been provided for the column TYPE, the insert will create a record with a value of '0'.
False will be the default value of the boolean datatype in java
In C, there is no default value for formal parameters. In C++, there can be, but the value is whatever you declare in the function declaration.
Type, name and initial value. If a value is not given and the type supports default construction, a default value is assigned.
null
Default is the value that has been given for a GV during design .But in Value field we can modifie the GV value during deployement.
plz reply me argent You can do it through Management Studio by right clicking on the table that you want to add the column to and select design. Or you can run a ALTER TABLE statement ALTER TABLE <TableName> Add <NewColumnName> <DataType> <DefaultValue> <NULL or NOT NULL> Keep in mind you do not need to specify a Default Value. Also note that it will drop to the bottom of the column list based on ordinal position. ALTER TABLE ErrorLog Add IsDeleted BIT DEFAULT (0) NOT NULL
a default value