constant_expression Is a constant, NULL, or a system function that is used as the default value for the column. IDENTITY Indicates that the new column is an identity column. When a new row is added to the table, the Database Engine provides a unique, incremental value for the column. Id...
for you to understand the foundations of compiler development and get a firm, high-level understanding of how languages target the CLR efficiently. I won't be developing the equivalent of a C# 4.0 or an IronRuby, but this discussion will still offer enough meat to ig...
In backward compatible syntax, WITH SORT_IN_TEMPDB is equivalent to WITH SORT_IN_TEMPDB = ON. IGNORE_DUP_KEY = { ON | OFF } Specifies the error response when an insert operation attempts to insert duplicate key values into a unique index. The IGNORE_DUP_KEY option applies only to insert...
So, x-a = 1/xa. Suppose we are given this expression to evaluate: 2-4 To create an equivalent expression, you simply need to move the base and exponent to the other side of the fraction line and change the exponent to positive: 1/(24) ...
For example, you can specify different columns, or index options.DROP_EXISTING = OFF An error is shown if the specified index name already exists. The index type can't be changed by using DROP_EXISTING. In backward-compatible syntax, WITH DROP_EXISTING is equivalent to WITH DROP_EXISTING =...
A computed column can be used as a key column in an index or as part of any PRIMARY KEY or UNIQUE constraint, if the computed column value is defined by a deterministic expression and the data type of the result is allowed in index columns. For example, if the table has integer columns...
If the pattern expression contains qualified names, anamespace-declarationmust be specified to define namespace prefixes. A default namespace can be defined for unqualified names. DECLARE NAMESPACEnamespace-prefix=namespace-uri Mapsnamespace-prefix,which is an NCName, tonamespace-uri, which is a...
If the pattern expression contains qualified names, anamespace-declarationmust be specified to define namespace prefixes. A default namespace can be defined for unqualified names. DECLARE NAMESPACEnamespace-prefix=namespace-uri Mapsnamespace-prefix,which is an NCName, tonamespace-uri, which is a...
The consistency requirements for the mount; one of default: Equivalent to consistent. consistent: Full consistency. The container runtime and the host maintain an identical view of the mount at all times. cached: The host's view of the mount is authoritative. There may be delays before updates...
SELECT empid, deptname FROM emps JOIN depts ON emps.deptno=depts.deptno WHERE hire_date >= '2018-01-01'; -- The preceding statement is equivalent to the following statement: SELECT empid, deptname FROM mv WHERE hire_date >= '2018-01-01';Query...