您要查找的是不是:
- 不计except
- 计入reckon in
- 计件by the job
- 例如,以下查询通过将某个出版商的所有书籍的价格上调10%更新titles表For example, the following query updates the titles table by adding 10%25 to the price of all titles for one publisher
- 液位计juice level gauge
- ROWS ONLY子句来限制返回到查询的数据量。ROWS ONLY clause on your SQL statements to limit the amount of data returned to a query.
- 为确保数据不失去同步,可以在titles和publishers表之间强制引用完整性。To make sure your data is not out of sync, you can enforce referential integrity between the titles and publishers tables.
- 硬度计sclerometer
- pg_num_rows()返回PostgreSQL result中的行的数目。Pg_num_rows() will return the number of rows in a PostgreSQL result resource.
- 例如,在titles表中,可以使用更新查询将特定出版商的所有书籍的价格上调10%。For example, in a titles table you can use an Update query to add 10%25 to the price of all books for a particular publisher.
- 计画plan
- 例如,如果对titles表的price列的值进行合计,将无法同时显示单个书名、出版商名称等。For example, if you are totaling the value of the price column of the titles table, you would not also display individual titles, publisher names, and so on.
- 时计hour meter
- 如果您的记录集非常大,那么在访问Rows属性时,应注意使尽可能多的行保持共享。If your record set is very large, you should be careful to keep the rows shared as much as possible when accessing the Rows property.
- titleauthors表的主键是au_id列(authors表的主键)和title_id列(titles表的主键)的组合。The primary key of the titleauthors table is the combination of the au_id column (the authors table's primary key) and the title_id column (the titles table's primary key).
- 事前计提基金advanced funding
- all-rows的设置也适用于不感知(ODBC静态)游标,因为当游标打开时整个结果都实现了。A setting of all-rows is also appropriate for insensitive (ODBC static) cursors since the entire result is materialized when the cursor is opened.
- 用计maneuver
- 只需加上所期望的LOB值的平均大小、再乘以Num_Rows,然后再加上聚集索引的总大小。It is sufficient to just add the average size of the LOB values that are expected, multiply by Num_Rows, and add that to the total clustered index size.
- 体重计batheroom scales