python cursor count
2014年2月18日 — From the documentation: As required by the Python DB API Spec, the rowcount attribute “is -1 in case no executeXX() has been performed on ... ,2011年7月4日 — As required by the Python DB API Spec, the rowcount attribute “is -1 in case no executeXX() has been performed on the cursor or the rowcount ...
| 相關軟體 SQLite (64-bit) 資訊 | |
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 python cursor count 相關參考資料
cursor.count() - MongoDB Documentation
Counts the number of documents referenced by a cursor. Append the count() method to a find() query to return the number of matching documents. The operation does not perform the query but instead coun... https://docs.mongodb.com cursor.rowcount always -1 in sqlite3 in python3k - Stack ...
2014年2月18日 — From the documentation: As required by the Python DB API Spec, the rowcount attribute “is -1 in case no executeXX() has been performed on ... https://stackoverflow.com cursor.rowcount gives 'int' object is not callable error - Stack ...
2011年7月4日 — As required by the Python DB API Spec, the rowcount attribute “is -1 in case no executeXX() has been performed on the cursor or the rowcount ... https://stackoverflow.com How to count number of records in an SQL database with python
2016年10月22日 — For pyodbc, cursor.execute() returns the cursor object itself. You still need to retrieve the results separately. You could loop over the cursor to ... https://stackoverflow.com How to get the length of a cursor from mongodb using python ...
2016年2月29日 — The cursor.count method is deprecated since pymongo 3.7. The recommended method is to use the count_documents method of the ... https://stackoverflow.com Python Cursor.rowcount returns number of fetched rows
2014年7月1日 — rowcount returns number of fetched rows. The Cursor. rowcount property has been improved so that it now returns the number of fetched rows instead of -1 as it did previously. https://docs.faircom.com Python: Number of rows affected by cursor.execute("SELECT ...
2010年3月25日 — Try using fetchone : cursor.execute("SELECT COUNT(*) from result where server_state='2' AND name LIKE '"+digest+"_"+charset+"_%'") ... ... https://stackoverflow.com python语言中，对于cursor的查询明明有结果，为什么print ...
2013年1月25日 — 显然查询是有结果的，为什么rowcount为-1呢？ 第1行>>> db = mysql.connector.Connect(host ... https://blog.csdn.net rowcount - sqlite3 - Python documentation - Kite
rowcount - Although the Cursor class of the sqlite3 module implements this attribute, the database engine's own support for the determination of “rows… https://www.kite.com |