peewee Documentation Release 3.6.0Getting random records Paginating records Counting records Aggregating records Retrieving Scalar Values Window functions Retrieving row tuples / dictionaries / namedtuples Returning Clause Common Table Expressions (30000, 50000) Window functions A Window function refers to an aggregate function that operates on a sliding window of data that is being processed as part of a SELECT query. Window functions make it row value to a value in the preceding (or succeeding!) row(s). peewee comes with support for SQL window functions, which can be created by calling Function.over() and passing in your partitioning or ordering0 码力 | 377 页 | 399.12 KB | 1 年前3
Getting Started in KiCad 5.11. Under Windows run kicad.exe. Under Linux type kicad in your Terminal. You are now in the main window of the KiCad project manager. From here you have access to eight stand-alone software tools: Eeschema press the Add Symbol hotkey [a]. 6. Click on the middle of your schematic sheet. A Choose Symbol window will appear on the screen. We’re going to place a resistor. Search / filter on the R of Resistor is quite a generic and useful library. 7. Double click on it. This will close the Choose Symbol window. Place the component in the schematic sheet by clicking where you want it to be. 8. Click on the0 码力 | 63 页 | 634.01 KB | 1 年前3
Getting Started in KiCad 4.01. Under Windows run kicad.exe. Under Linux type kicad in your Terminal. You are now in the main window of the KiCad project manager. From here you have access to eight stand-alone software tools: Eeschema shortcut keys by pressing the ? key. 6. Click on the middle of your schematic sheet. A Choose Component window will appear on the screen. We’re going to place a resistor. Search / filter on the R of Resistor quite a generic and useful library. 7. Double click on it. This will close the Choose Component window. Place the component in the schematic sheet by clicking where you want it to be. 8. Click on the0 码力 | 63 页 | 756.22 KB | 1 年前3
BlenderVR User Manual
Release 0.1Section before installing) Note MacOS: open Qt.mpkg with mouse right click -> Open, to avoid popup window “can’t install, non identified developer”. Quick Setup Type the following commands in your terminal in: $ python ./venv/bin/pyside_postinstall.py -install Note MacOS: running these lines may popup window “download the command line developer tools”, go for it. Linux: If the “pyvenv venv” command fails $INSTALL_DIR $ .\venv\Scripts\activate $ python3 .\source\blendervr You should now see the BlenderVR window popping up (see figure below). Congratulations your installation was a success! Once you are done0 码力 | 75 页 | 861.11 KB | 1 年前3
peewee Documentation Release 2.10.2Retrieving Scalar Values SQL Functions, Subqueries and “Raw expressions” Security and SQL Injection Window functions Retrieving raw tuples / dictionaries Returning Clause Query operators Three valued logic You can also find this parameter by checking Database.interpolation. Window functions peewee comes with basic support for SQL window functions, which can be created by calling fn.over() and passing in order_by=[Employee.salary]))) For general information on window functions, check out the postgresql docs [http://www.postgresql.org/docs/9.1/static/tutorial-window.html]. Retrieving raw tuples / dictionaries Sometimes0 码力 | 275 页 | 276.96 KB | 1 年前3
KiCad 5.1 Schematic EditorOptions dialog (menu Preferences → General Options). Here is the default hotkey list: Help (this window) Ctrl+F1 Zoom In F1 Zoom Out F2 Zoom Redraw F3 Zoom Center F4 Fit on Screen Home Zoom to Selection middle mouse button (without moving the mouse): Center the view around the cursor pointer position Window Zoom: Mouse wheel: Zoom in/out Shift+Mouse wheel: Pan up/down Ctrl+Mouse wheel: Pan left/right as its internal unit. The following information is displayed at the bottom right hand side of the window: The zoom factor The absolute position of the cursor The relative position of the cursor The0 码力 | 263 页 | 2.36 MB | 1 年前3
peewee Documentation Release 3.0.0Retrieving Scalar Values SQL Functions, Subqueries and “Raw expressions” Security and SQL Injection Window functions Retrieving row tuples / dictionaries / namedtuples Returning Clause Query operators Three This category covers aggregation at length, making use of standard grouping as well as more recent window functions. Count the number of facilities For our first foray into aggregates, we’re going to stick database. You can also find this parameter by checking Database.param. Window functions peewee comes with basic support for SQL window functions, which can be created by calling Function.over() and passing0 码力 | 319 页 | 361.50 KB | 1 年前3
KiCad PCB Editor 4.0Pcbnew it is possible to execute commands using various means: Text-based menu at the top of the main window. Top toolbar menu. Right toolbar menu. Left toolbar menu. Mouse buttons (menu options). Specifically: display the pop-up menu and select the required operation. For each block operation a selection window enables the action to be limited to only some elements. 3.3. Selection of grid size During element toolbar. Any of the pre-defined grid sizes, or a User Defined grid, can be chosen using the pop-up window, or the drop-down selector on the toolbar at the top of the screen. The size of the User Defined0 码力 | 268 页 | 2.81 MB | 1 年前3
KiCad PCB Editor 5.1Pcbnew it is possible to execute commands using various means: Text-based menu at the top of the main window. Top toolbar menu. Right toolbar menu. Left toolbar menu. Mouse buttons (menu options). Specifically: display the pop-up menu and select the required operation. For each block operation a selection window enables the action to be limited to only some elements. 3.3. Selection of grid size During element toolbar. Any of the pre-defined grid sizes, or a User Defined grid, can be chosen using the pop-up window, or the drop-down selector on the toolbar at the top of the screen. The size of the User Defined0 码力 | 279 页 | 3.02 MB | 1 年前3
peewee Documentation
Release 3.5.0Getting random records Paginating records Counting records Aggregating records Retrieving Scalar Values Window functions Retrieving row tuples / dictionaries / namedtuples Returning Clause Foreign Keys and Joins salary), fn.Max(Employee.salary) ... ).scalar(as_tuple=True) (30000, 50000) Window functions peewee comes with support for SQL window functions, which can be created by calling Function.over() and passing order_by=[Employee.salary]))) For general information on window functions, check out the postgresql docs [http://www.postgresql.org/docs/9.1/static/tutorial-window.html]. Retrieving row tuples / dictionaries /0 码力 | 347 页 | 380.80 KB | 1 年前3
共 471 条
- 1
- 2
- 3
- 4
- 5
- 6
- 48













