How to use advanced filter and query syntax?
This topic describes the filtering and query options that are available when you use the Advanced filter/sort dialog or the matches operator in the Filter pane or grid column header filters. Type the value to find. Smith finds “Smith”. Type an exclamation point and then the value to exclude.
How are filters used in an access database?
Less Filtering is a useful way to see only the data that you want displayed in Access databases. You can use filters to display specific records in a form, report, query, or datasheet, or to print only certain records from a report, table, or query.
How are global query filters applied in EF Core?
EF Core applies such filters automatically to any LINQ queries involving those Entity Types. EF Core also applies them to Entity Types, referenced indirectly through use of Include or navigation property. Some common applications of this feature are: Soft delete – An Entity Type defines an IsDeleted property.
How are subqueries used in a query filter?
Using subqueries, you can limit the values returned with a WHERE clause. You can also compare the values of objects in a subquery with the other objects. Using subqueries, you can implement complex logic to limit the size of data, which is not possible to apply with simple query filters.
How to use query filters in onmodelcreating?
Next, configure the query filters in OnModelCreating using the HasQueryFilter API. The predicate expressions passed to the HasQueryFilter calls will now automatically be applied to any LINQ queries for those types. Note the use of a DbContext instance level field: _tenantId used to set the current tenant.
What are global query filters in LINQ core?
Global Query Filters. Global query filters are LINQ query predicates (a boolean expression typically passed to the LINQ Where query operator) applied to Entity Types in the metadata model (usually in OnModelCreating).
How to use SELECT statement in SQL Server?
SQL Server Functions. The SQL SELECT Statement. The SELECT statement is used to select data from a database. The data returned is stored in a result table, called the result-set. The following SQL statement selects all the columns from the “Customers” table: Example.
How is the if statement executed in SQL Server?
SQL Server provides the capability to execute real-time programming logic using SQL IF Statement. Syntax. In the following SQL IF Statement, it evaluates the expression, and if the condition is true, then it executes the statement mentioned in IF block otherwise statements within ELSE clause is executed.
Which is true in the if statement in SQL?
First, IF statement condition is TRUE. It prints the message inside the IF statement block It executes the ELSE statement and prints the message for it. In this case, we have two SQL IF statements. The second IF statement evaluates to false, therefore, it executes corresponding ELSE statement