null value

When you work with strings with a null value, the result of the concatenation depends on the session settings.

The null value in the system is an empty object that has no value.

However, . NET Web services will throw a System. FormatException if it receives a null value to its value type of data from a Java client.

These operators produce a null value if the operands are null; otherwise, the operator uses the contained value to calculate the result.

Property by assigning it a null value or empty string.

If one expression evaluates to a null value , the operator returns the result of the other expression .

If you specify a null value for a parameter, all other values specified for that same parameter are ignored.

One or more of these columns will be a null value, depending on which elements of the DBID structure the provider uses.

When you want to determine whether a given row includes a comment, you no longer need to check for a null value in the COMMENT column.

This means that your Java extraction code must expect the possibility of a null value (and an associated exception).

Otherwise, an attempt to insert a record with a NULL value for the partitioning key will result in a "data out of bounds" error.

Therefore, joining two tables together will not select rows where any of the columns compared contain the NULL value.

But a null value cannot be assigned to it.

Otherwise, the shell interprets the trailing text as part of your variable name -- and most likely returns a null value.

Parameter must be a value type that cannot be a null value.

Without this requirement, the itemNumber column isn't guaranteed to be unique because multiple columns could be assigned a NULL value.

If you do not do this, then the control will not marshal correctly and CreateToolWindow2 will return a null value.

A null value represents the absence of information; it does not represent a zero or any value at all.

The developer can initially leave the DataSource set to its default null value and set the property in code.

You cannot supply a null value to SET CONTEXT_INFO because the views holding the values do not allow for null values.

This gave rise to the need for a "null value" to represent unknown or inapplicable values in relational databases.

Otherwise, the column is allowed to contain the NULL value, which represents no value.

A null value is useful for indicating that a variable has no defined value because the information is not currently available.

If the dimension does not contain a hierarchy or has only one hierarchy, the current column contains a null value.

Returns a non-null value before using its result, as it is expected that the referent will eventually be garbage collected.

In Java, it is a common practice to assign a null value to a reference type when it is not referencing any object.

Setting remote_agent_server_name to any non-NULL value will generate an error.

By default, a column can contain a NULL value, but if you don't want that, you can append the "NOT NULL" postfix to the field definition.

This line also traps for a null value and converts it to an empty string to prevent problems during later processing.

If a column has a default value, pass a null value in the array to set the default value for that column.

For database-level entities a one-part name is accepted, with a null value meaning "current database" .

The NULL value introduces the concept of three valued logic to SQL.

For any type of cursor, if the cursor is closed, then a null value is passed back to the calling batch, stored procedure, or trigger.

One of the items in the array of objects had a null value.

When OFF is specified, comparisons of non-UNICODE values to a null value evaluate to TRUE if both values are NULL.

The special NULL value represents that a variable has no value.

If this column is not sorted, a null value is returned, and the @formulas in the agent will not continue executing.

Only a value of 0 can be specified when writing to a null value instance.

By default, a null value in a column maps to the absence of the attribute, node, or element.

Define a complex type to wrap the value type and set the complex type to be null to indicate a null value.

If the return type of the method is nullable, the distinguished null value for the type is returned.

If the corresponding class, field, or method is not generic, a null value is passed when calling the method.

Passing a null value unenlists the connection from its current distributed transaction enlistment.

The employee middle name is null and, by default, the null value maps to the absence of the element or attribute.

Gets a value that indicates whether the column at the specified index contains a null value.

If the column name cannot be determined, a null value is returned.

The data that you are importing contains a Null value that you attempted to append to an AutoNumber field.

Database-generated values in other column types will unexpectedly result in a null value.

If the primary key cannot be found, then a null value is returned.

Specifies that the parameter is an input parameter and may contain a null value.

An empty result set is not the same as a null value.

The altered signature enables you to pass a null value.

What if someone inadvertently passes in a null value for the Class parameter?

This marker is usually called the null value, the null list, or the null pointer.

A null value if the base catalog name cannot be determined.

Likewise, the Java extraction code is cleaner and faster, with no null-value exceptions being thrown.

A null value if the base schema name cannot be determined.

The expression may be a null value if the parameter is nullable.

The object used to indicate a null value in a cell.

The NULL value compared using any comparison operator with any value (including the NULL value) is "UNKNOWN. "

It's the situation where, for instance, someone passes a null value to a method not coded to handle nulls.

If one expression evaluates to a null value, the operator returns a null value.

If no specific default value has been supplied, the Load method uses the null value as the implied default value.

You decide what value to return when a consumer accesses a field containing a NULL value.

Represents the exception that is thrown when you try to insert a null value into a column where AllowDBNull is set to false.

A null value if the base table name cannot be determined.

Returns NULL when concatenating a NULL value with a string.

The folder at the top of the folder hierarchy contains a null value in parentfolderid.

When OFF is specified, the null value is treated as an empty character string.

When ON is specified, all comparisons to a null value evaluate to UNKNOWN.

Concatenating a null value with a string yields a NULL result.

If this cannot be determined, a null value is returned.

Listing 3 initializes a new Zend_Soap_Server object in non-WSDL mode, passing a null value as the first argument to the object constructor.

Represents a null value that can be assigned to the Value property of a SqlSingle structure.

Gets a value that indicates whether the named column contains a null value.

However, a null value can present challenges when working with ASP. NET code or with data-bound Web controls.

If Divisor evaluates to a null value, the operator raises an error.

A method of handling NULL value in uncertain database systems was put forward, which could improve the problem of handling NULL value.

If the new column allows null values and no default is specified, the new column contains a null value for each row in the table.

If the row is set to a null value, the value is not printed.

Attributes that have a null value do not appear.

The variable contains the NULL value until it is assigned a different value by the SET statement.

This is necessary for code executing in the UDT to be able to recognize a null value.

A user that does not have ALTER ANY LINKED SERVER permission will see a NULL value in this column.

Method to determine whether a column contains a null value.

A null value if the provider does not support catalogs.

The name and type attributes are required; null is used only if the property has a null value.

If the table contains less than two rows, Access returns a null value.

The null value is treated as an empty character string.

When SET ANSI_NULLS is OFF, comparisons of all data against a null value evaluate to TRUE if the data value is NULL.

Later, when you call Update, RFX compares each data member's value with the PSEUDO_NULL value.

Property when an attempt is made to set this property and it already has a non-null value.

However, the null value will not affect the appended chunks of data.

That means a reference type can have a null pointer, but a value type cannot have a null value.

Specifies that empty columns should retain a null value during the operation, rather than have any default values for the columns inserted.

A user that does not have CONTROL SERVER permission will see a NULL value in this column.

Where certain information is unavailable, a null value is inserted.

Aiming at incomplete information of indicator system, this paper sets up null value dealing model of indicator system based on rough set.

Value types can be extended to take either their normal values or a null value.

If either ANSI_WARNINGS or ARITHABORT are ON, an error is thrown instead of returning NULL value.

Neither a key nor a value can be null (if a null value in a dictionary is required, use "NSNull" instead).

When SET CONCAT_NULL_YIELDS_NULL is ON, concatenating a null value with a string yields a NULL result.

In contrast, a regular INSERT statement retains the null value instead of inserting a default value.

A null value indicates that there is no value.

Returns a null value of a requested data type.

If no match is found within the input, a null value is returned.

The NULL value is used to represent missing or inapplicable information.

Defines a null value node in a query expression tree.

One parameter must be passed a null value.

Specifies whether the type can hold a null value.

If the parameter can contain a null value, select Allow null value.

Depending on the report, you can specify a null value if nulls are permitted.

By default, the @Out annotation requires a non-null value every time it is activated.

A null value is useful to indicate an undefined or unknown value.

If a new record is being added, a DataRowView object determines whether the Discontinued column has a null value.

If you convert a NULL value to an array, you get an empty array.

A null value if the parameter is not named.

The column returned cannot contain a null value.

Null parameters use special syntax; you must specify isnull for a null value.

This may be because it has a null value or has zero properties specified.

When SET ANSI_NULLS is ON, all comparisons against a null value evaluate to UNKNOWN.

The default for this column is a null value.

Note that if a source worksheet or range contains error values, Access inserts a null value in the corresponding fields in the table.

For more information about the NULL value, see NULL value.

The NULL value is a special value which is different from any valid value for any data type.

Indicates whether the attribute can have a null value.

However, you can enter a null value in the foreign key field.

This column cannot contain a null value.

However, the NULL value is a legal value in any data type.

Should do when it contains a null value.

Contains a null value the result also is a null value.

If nullable, it will contain the NULL value.

Nullable types are value types such as an integer or a Boolean that can be either a regular value or a null value.

SQL Server enforces uniqueness by only permitting a single row with a NULL value for the same column.

The description column is left empty, which means it will have a NULL value.

It carries a null value in all the.

For example, a column may contain a null value, whereas the destination column cannot be set to null.

The relation is a null value.

Is not a numeric data type, this is a null value.

The default is a null value.

Is assigned a null value.

This table describes the default value that is set by the stored procedure if a NULL value is specified for.

Aggregate functions, such as MIN, issue a warning that a null value was eliminated if their input contains a NULL.

If no argument is specified, a null value is used.

Unless you have a very specific reason to use a NULL value, you should always set your columns as NOT NULL.

In addition, if you have a table with many columns that aren't typically used, you are also wasting disk space with NULL value fields.

An unknown, or NULL, value refers to a data source in which "grant with grant" is not applicable.

Depending on your data source, a null value may or may not be permitted in a column.

Gets or sets the value saved to the data source when the user enters a null value into a cell.

If the method returns nullNothingnullptra null reference (Nothing in Visual Basic), the valid null value is used.

Commutation Algorithm toward Null Value for Data Dependent on Satisfactory Conditions in Relational Database

The following example changes the value of a column to a null value, and then uses the

Therefore, both objects need to be assigned the null value before the object is eligible for garbage collection

Scheme decomposition under fuzzy null value circumstances

Operations in relational databases under fuzzy null value enviroment

A zero-length string to indicate that, by default, this field should be empty instead of containing a null value

If the consumer can set the column to a null value; otherwise,

Inserting a null value into a

The Expanding Relational Model under Fuzzy Null Value Enviroment

If there is only one non-NULL value in the column

Disposal of Redundancy in the Relational Model Under the Fuzzy Null Value Environment

There are two ways to represent a null value with elements: with either the attribute

NULL VALUE ELIMINATED IN SET FUNCTION

Columns that Contain a Null Value By Default

If you need to insert a NULL value, make that row the second row, as in Listing 10

If you pass a buffer that is a null value,

A null value will be added to the data source when the control property is set to the object of