pkg database/sql, method (*Conn) PrepareContext(context.Context, string) (*Stmt, error)
pkg database/sql, method (*Conn) QueryContext(context.Context, string, ...interface{}) (*Rows, error)
pkg database/sql, method (*Conn) QueryRowContext(context.Context, string, ...interface{}) *Row
pkg database/sql, method (*DB) Conn(context.Context) (*Conn, error)
pkg database/sql, type Conn struct
pkg database/sql, type Out struct

// e.prop.isAggregation is true), we call evalNode on all child nodes,
// check for errors, but do not perform any combining of the results
// of child nodes. The final result row is returned after all rows are
// processed, and the `getAggregate` function is called.

func (e *AliasedExpression) evalNode(r Record, tableAlias string) (*Value, error) {
	return e.Expression.evalNode(r, tableAlias)
}

   *
   * {@snippet :
   * Table<R, C, V> table = Tables.synchronizedTable(HashBasedTable.create());
   * ...
   * Map<C, V> row = table.row(rowKey);  // Needn't be in synchronized block
   * ...
   * synchronized (table) {  // Synchronizing on table, not row!
   *   Iterator<Entry<C, V>> i = row.entrySet().iterator(); // Must be in synchronized block
   *   while (i.hasNext()) {
   *     foo(i.next());
   *   }
   * }

	values := map[string]interface{}{"Active": true, "age": 5}
	if res := DB.Model(user).Updates(values); res.Error != nil {
		t.Errorf("errors happened when update: %v", res.Error)
	} else if res.RowsAffected != 1 {
		t.Errorf("rows affected should be 1, but got : %v", res.RowsAffected)
	} else if user.Age != 5 {
		t.Errorf("Age should equals to 5, but got %v", user.Age)
	} else if user.Active != true {

/// tip

You could use any other SQL or NoSQL database library you want (in some cases called <abbr title="Object Relational Mapper: a fancy term for a library where some classes represent SQL tables and instances represent rows in those tables">"ORMs"</abbr>), FastAPI doesn't force you to use anything. 😎

///

Example:

    Source (English):

        «««
        <abbr title="Object Relational Mapper: a fancy term for a library where some classes represent SQL tables and instances represent rows in those tables">ORM</abbr>
        »»»

    Result (German):

        «««

For migrating from Apache Solr:

#### Document Export and Import

**Step 1: Export from Solr**

```bash
# Export Solr documents as JSON
curl "http://solr-server:8983/solr/collection1/select?q=*:*&rows=10000&wt=json" \
  -o solr-export.json
```

**Step 2: Transform to Fess Format**

Create a transformation script to map Solr fields to Fess fields:

```python
import json

# Load Solr export

   * {@snippet :
   * // Result.getRowsClosingFuture() returns a ClosingFuture.
   * ClosingFuture<List<Row>> rowsFuture =
   *     queryFuture.transformAsync((closer, result) -> result.getRowsClosingFuture(), executor);
   *
   * // Result.writeRowsToOutputStreamFuture() returns a ListenableFuture that resolves to the
   * // number of written rows. openOutputFile() returns a FileOutputStream (which implements
   * // AutoCloseable).

-3 {\n  gap: 1rem !important;\n}\n\n.gap-4 {\n  gap: 1.5rem !important;\n}\n\n.gap-5 {\n  gap: 3rem !important;\n}\n\n.row-gap-0 {\n  row-gap: 0 !important;\n}\n\n.row-gap-1 {\n  row-gap: 0.25rem !important;\n}\n\n.row-gap-2 {\n  row-gap: 0.5rem !important;\n}\n\n.row-gap-3 {\n  row-gap: 1rem !important;\n}\n\n.row-gap-4 {\n  row-gap: 1.5rem !important;\n}\n\n.row-gap-5 {\n  row-gap: 3rem !important;\n}\n\n.column-gap-0 {\n  -moz-column-gap: 0 !important;\n  column-gap: 0 !important;\n}\n\n.column-gap-1...

pkg database/sql, method (*Rows) Columns() ([]string, error)
pkg database/sql, method (*Rows) Err() error
pkg database/sql, method (*Rows) Next() bool
pkg database/sql, method (*Rows) Scan(...interface{}) error
pkg database/sql, method (*Stmt) Close() error
pkg database/sql, method (*Stmt) Exec(...interface{}) (Result, error)
pkg database/sql, method (*Stmt) Query(...interface{}) (*Rows, error)