A SqlDbType that is not allowed was passed to the constructor as dbType. Examples The following example creates a new SqlMetaData object by specifying the column name and a column data type of Int C# 复制 using
Initializes a new instance of the SqlMetaData class with the specified column name, type, user-defined type, SQL Server type, and server default. This form of the constructor supports table-valued parameters by allowing you to specify if the column is unique in the table-valued parameter, the...
Initializes a new instance of the SqlMetaData class with the specified column name, type, user-defined type, SQL Server type, and server default. This form of the constructor supports table-valued parameters by allowing you to specify if the column is unique in the table-valued parameter, the...
TLS 1.2 is currently used as the minimum when acting as a client, and TLS 1.0 when acting as a server. General purpose web applications should default to TLS 1.3 with all other protocols disabled. Only where it is known that a web server must support legacy clients with unsupported an inse...
an attribute name pattern; must match the attribute name as it is declared in the database Returns IResultSet aResultSetobject in which each row is an attribute description Attributes RegisterAttribute Exceptions SQLException if there is a database error. ...
What's our user name as known to the database? java.sql.ResultSet getVersionColumns(java.lang.String catalog, java.lang.String schema, java.lang.String table) Get a description of a table's columns that are automatically updated when any value in a row is updated. boolean insertsAreDetect...
sqlStateXOpen A possible return value for the method DatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the method SQLException.getSQLState is an X/Open (now know as Open Group) SQL CLI SQLSTATE value. static final short tableIndexClustered Indicates that...
Methods declared in interface java.sql.Wrapper isWrapperFor, unwrap Field Details columnNoNulls static final int columnNoNulls The constant indicating that a column does not allow NULL values. See Also: Constant Field Values columnNullable static final int columnNullable The constant indicating that ...
Gets all keys declared on this entity type. GetDeclaredMembers() This is an internal API that supports the Entity Framework Core infrastructure and not subject to the same compatibility standards as public APIs. It may be changed or removed without notice in any release. You should only use ...
An example ORM diagram, without data constraints, is shown in Fig. 2.(b). To model seismic knowledge as relational KGs, we define KG ontologies through the recognition of data integrity constraints, declared in natural language. These directly correspond to fact types in the ontology diagram ...