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table.select()
Oxford Harrison edited this page Nov 11, 2024
·
25 revisions
Programmatically perform an SELECT
query.
table.select(
fields?: Field[],
modifiers?: QueryOptions | LimitClause | Callback,
): Promise<QueryResult>;
table.select(
arg?: {
fields?: Field[];
} & QueryOptions | LimitClause | Callback
): Promise<QueryResult>;
Param | Description |
---|---|
fields? |
Fields list. |
modifiers? |
Query modifiers. |
interface QueryOptions {
where?: WhereClause;
limit?: LimitClause;
orderBy?: OrderByClause;
groupBy?: GroupByClause;
}
Param | Description |
---|---|
where? |
The WHERE clause. |
limit? |
The LIMIT clause. |
orderBy? |
The ORDER BY clause. |
groupBy? |
The GROUP BY clause. |
type QueryResult = Array<object> | object;
Type | Description |
---|---|
Array<object> |
An array of objects by default. |
object |
A single object. |
Two-parameter call pattern:
/**
* SELECT first_name, last_name, email
* LIMIT 4
*/
const result = await table.select(['first_name', 'last_name', 'email'], 4);
Single-parameter call pattern:
/**
* SELECT first_name, last_name, email
*/
const result = await table.select(['first_name', 'last_name', 'email']);
/**
* SELECT *
* LIMIT 4
*/const result = await table.select(4);
/**
* SELECT first_name, last_name, email
* LIMIT 4
*/
const result = await table.select({
fields: ['first_name', 'last_name', 'email'],
limit: 4
});
Zero-parameter call pattern:
/**
* SELECT *
*/
const result = await table.select();
Find by ID (with actual ID column name automatically figured by Linked QL):
/**
* SELECT *
* WHERE automatically_figured_primary_key_name = 4
*/
const result = await table.select({ where: 1 });
console.log(result); // single result object