A very nice feature of Microsoft Access queries is the ability to rename fields. You might have your data stored in field names that users do not understand. By using a query expression, you can change the field name the user sees. For example, you can change a field named CustID to Cu...
Chapter 1. Queries Access queries—the six types that can be created on the easy-to-use query by example (QBE) grid, plus the three SQL-specific queries—give you a tremendous amount of power … - Selection from Access Cookbook, 2nd Edition [Book]
This feature was introduced in EF Core 7.0. WhileFromSqlis useful for querying entities defined in your model,SqlQueryallows you to easily query for scalar, non-entity types via SQL, without needing to drop down to lower-level data access APIs. For example, the following query fetches all ...
This feature was introduced in EF Core 7.0. WhileFromSqlis useful for querying entities defined in your model,SqlQueryallows you to easily query for scalar, non-entity types via SQL, without needing to drop down to lower-level data access APIs. For example, the following query fetches all ...
An instance of this class provides access to all the operations defined in QueriesClient. Method Summary 展开表 Modifier and TypeMethod and Description abstract QueryResultInner usage(String scope, QueryDefinition parameters) Query the usage data for scope defined. abstract QueryResultInner usage...
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If you do not have access to the underlying data sources that are referenced by the shared query, a dialog box appears that lets you request access to the data sources. In the dialog box that appears, click the Request Access link. Depending on how the access-request informa...
object_access_expression::= The column parameter can be an object or REF column. When a type's member function is invoked in the context of a SQL statement, if the SELF argument is null, Oracle returns null and the function is not invoked. Examples in this section use the following...
slowing access and increasing load on your machines, as well as taking more time to travel across the network. This is especially true when someone adds new columns to underlying tables that didn't exist and weren't needed when the original consumers coded their data access. ● Indexing issues...
DEFAULT DEFINITION DELAY DELETE DESC DIGITS DISPOSE DISTINCT DO DROP ELSE ELSIF END ENTRY EXCEPTION EXCEPTION_INIT EXCLUSIVE EXISTS EXIT FALSE FETCH FILE FLOAT FOR FORM FROM FUNCTION GENERIC GOTO GRANT GROUP HAVING IDENTIFIED IF IMMEDIATE IN