peewee Documentation Release 3.6.0
extension modules available. Skip Compilation of SQLite Extensions I’ve received reports from Windows users that they have some trouble installing Peewee due to missing a SQLite shared library. If you table now contains: id counter value 1 1 10.0 2 1 20.0 3 2 1.0 4 2 3.0 5 3 100.0 Ordered Windows Let’s calculate a running sum of the value field. In order for it to be a “running” sum, we need -19. -- (1 - 20) # 2 3. 2. -- (3 - 1) # 3 100 97. -- (100 - 3) Partitioned Windows Let’s calculate the average value for each distinct “counter” value. Notice that there are three0 码力 | 377 页 | 399.12 KB | 1 年前3peewee Documentation Release 3.6.0
extension modules available. 1.1.4 Skip Compilation of SQLite Extensions I’ve received reports from Windows users that they have some trouble installing Peewee due to missing a SQLite shared library. If you table now contains: id counter value 1 1 10.0 2 1 20.0 3 2 1.0 4 2 3.0 5 3 100.0 Ordered Windows Let’s calculate a running sum of the value field. In order for it to be a “running” sum, we need 6.0 (continued from previous page) # 2 3. 2. -- (3 - 1) # 3 100 97. -- (100 - 3) Partitioned Windows Let’s calculate the average value for each distinct “counter” value. Notice that there are three0 码力 | 302 页 | 1.02 MB | 1 年前3peewee Documentation Release 3.5.0
extension modules available. Skip Compilation of SQLite Extensions I’ve received reports from Windows users that they have some trouble installing Peewee due to missing a SQLite shared library. If you query. class Select([from_list=None[, columns=None[, group_by=None[, having=None[, distinct=None[, windows=None[, for_update=None[, **kwargs]]]]]]]]) Parameters: Parameters: from_list (list) – List of (Expression) – Expression for HAVING clause. distinct – Either a boolean or a list of column-like objects. windows (list) – List of Window clauses. for_update – Boolean or str indicating if SELECT…FOR UPDATE. Class0 码力 | 347 页 | 380.80 KB | 1 年前3peewee Documentation Release 3.4.0
extension modules available. Skip Compilation of SQLite Extensions I’ve received reports from Windows users that they have some trouble installing Peewee due to missing a SQLite shared library. If you query. class Select([from_list=None[, columns=None[, group_by=None[, having=None[, distinct=None[, windows=None[, for_update=None[, **kwargs]]]]]]]]) Parameters: Parameters: from_list (list) – List of (Expression) – Expression for HAVING clause. distinct – Either a boolean or a list of column-like objects. windows (list) – List of Window clauses. for_update – Boolean or str indicating if SELECT…FOR UPDATE. Class0 码力 | 349 页 | 382.34 KB | 1 年前3peewee Documentation Release 3.5.0
extension modules available. 1.1.4 Skip Compilation of SQLite Extensions I’ve received reports from Windows users that they have some trouble installing Peewee due to missing a SQLite shared library. If you query. class Select([from_list=None[, columns=None[, group_by=None[, having=None[, distinct=None[, windows=None[, for_update=None[, **kwargs]]]]]]]]) Parameters • from_list (list) – List of sources for Expression for HAVING clause. • distinct – Either a boolean or a list of column-like objects. • windows (list) – List of Window clauses. • for_update – Boolean or str indicating if SELECT...FOR UPDATE0 码力 | 282 页 | 1.02 MB | 1 年前3peewee Documentation Release 3.3.0
extension modules available. 1.1.4 Skip Compilation of SQLite Extensions I’ve received reports from Windows users that they have some trouble installing Peewee due to missing a SQLite shared library. If you query. class Select([from_list=None[, columns=None[, group_by=None[, having=None[, distinct=None[, windows=None[, for_update=None[, **kwargs]]]]]]]]) Parameters • from_list (list) – List of sources for Expression for HAVING clause. • distinct – Either a boolean or a list of column-like objects. • windows (list) – List of Window clauses. • for_update – Boolean or str indicating if SELECT...FOR UPDATE0 码力 | 280 页 | 1.02 MB | 1 年前3peewee Documentation Release 3.4.0
extension modules available. 1.1.4 Skip Compilation of SQLite Extensions I’ve received reports from Windows users that they have some trouble installing Peewee due to missing a SQLite shared library. If you query. class Select([from_list=None[, columns=None[, group_by=None[, having=None[, distinct=None[, windows=None[, for_update=None[, **kwargs]]]]]]]]) Parameters • from_list (list) – List of sources for Expression for HAVING clause. • distinct – Either a boolean or a list of column-like objects. • windows (list) – List of Window clauses. • for_update – Boolean or str indicating if SELECT...FOR UPDATE0 码力 | 284 页 | 1.03 MB | 1 年前3peewee Documentation Release 3.0.0
query. class Select([from_list=None[, columns=None[, group_by=None[, having=None[, distinct=None[, windows=None[, for_update=None[, **kwargs]]]]]]]]) from_list (list) – List of sources for FROM clause. columns (Expression) – Expression for HAVING clause. distinct – Either a boolean or a list of column-like objects. windows (list) – List of Window clauses. for_update – Boolean or str indicating if SELECT…FOR UPDATE. Class SELECT DISTINCT. Specifying one or more columns will result in a SELECT DISTINCT ON. window(*windows) windows – zero or more Window objects. Define the WINDOW clause. Any previously-specified values will0 码力 | 319 页 | 361.50 KB | 1 年前3peewee Documentation Release 3.1.0
query. class Select([from_list=None[, columns=None[, group_by=None[, having=None[, distinct=None[, windows=None[, for_update=None[, **kwargs]]]]]]]]) from_list (list) – List of sources for FROM clause. columns (Expression) – Expression for HAVING clause. distinct – Either a boolean or a list of column-like objects. windows (list) – List of Window clauses. for_update – Boolean or str indicating if SELECT…FOR UPDATE. Class SELECT DISTINCT. Specifying one or more columns will result in a SELECT DISTINCT ON. window(*windows) windows – zero or more Window objects. Define the WINDOW clause. Any previously-specified values will0 码力 | 332 页 | 370.77 KB | 1 年前3peewee Documentation Release 2.10.2
be returned in whatever order database chooses. unordered_users = users.order_by() window(*windows) windows (Window) – One or more Window instances. Add one or more window definitions to this query.0 码力 | 275 页 | 276.96 KB | 1 年前3
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