<tfoot id='Xt4w7'></tfoot>
      • <bdo id='Xt4w7'></bdo><ul id='Xt4w7'></ul>

        <small id='Xt4w7'></small><noframes id='Xt4w7'>

      1. <legend id='Xt4w7'><style id='Xt4w7'><dir id='Xt4w7'><q id='Xt4w7'></q></dir></style></legend>

        <i id='Xt4w7'><tr id='Xt4w7'><dt id='Xt4w7'><q id='Xt4w7'><span id='Xt4w7'><b id='Xt4w7'><form id='Xt4w7'><ins id='Xt4w7'></ins><ul id='Xt4w7'></ul><sub id='Xt4w7'></sub></form><legend id='Xt4w7'></legend><bdo id='Xt4w7'><pre id='Xt4w7'><center id='Xt4w7'></center></pre></bdo></b><th id='Xt4w7'></th></span></q></dt></tr></i><div id='Xt4w7'><tfoot id='Xt4w7'></tfoot><dl id='Xt4w7'><fieldset id='Xt4w7'></fieldset></dl></div>

      2. 在 SQLite 上加入表时如何进行更新?

        How do I make an UPDATE while joining tables on SQLite?(在 SQLite 上加入表时如何进行更新?)

              <tbody id='ibyAh'></tbody>

            • <i id='ibyAh'><tr id='ibyAh'><dt id='ibyAh'><q id='ibyAh'><span id='ibyAh'><b id='ibyAh'><form id='ibyAh'><ins id='ibyAh'></ins><ul id='ibyAh'></ul><sub id='ibyAh'></sub></form><legend id='ibyAh'></legend><bdo id='ibyAh'><pre id='ibyAh'><center id='ibyAh'></center></pre></bdo></b><th id='ibyAh'></th></span></q></dt></tr></i><div id='ibyAh'><tfoot id='ibyAh'></tfoot><dl id='ibyAh'><fieldset id='ibyAh'></fieldset></dl></div>

                <bdo id='ibyAh'></bdo><ul id='ibyAh'></ul>
              • <small id='ibyAh'></small><noframes id='ibyAh'>

                  <tfoot id='ibyAh'></tfoot><legend id='ibyAh'><style id='ibyAh'><dir id='ibyAh'><q id='ibyAh'></q></dir></style></legend>
                1. 本文介绍了在 SQLite 上加入表时如何进行更新?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我试过了:

                  UPDATE closure JOIN item ON ( item_id = id ) 
                  SET checked = 0 
                  WHERE ancestor_id = 1
                  

                  还有:

                  UPDATE closure, item 
                  SET checked = 0 
                  WHERE ancestor_id = 1 AND item_id = id
                  

                  两者都适用于 MySQL,但它们在 SQLite 中给了我一个语法错误.

                  Both works with MySQL, but those give me a syntax error in SQLite.

                  如何使此 UPDATE/JOIN 与 SQLite 3.5.9 版一起使用?

                  How can I make this UPDATE / JOIN works with SQLite version 3.5.9 ?

                  推荐答案

                  你不能.SQLite 不支持 UPDATE 语句中的 JOIN.

                  You can't. SQLite doesn't support JOINs in UPDATE statements.

                  但是,您可以使用子查询来代替:

                  But, you can probably do this with a subquery instead:

                  UPDATE closure SET checked = 0 
                  WHERE item_id IN (SELECT id FROM item WHERE ancestor_id = 1);
                  

                  或者类似的东西;目前尚不清楚您的架构究竟是什么.

                  Or something like that; it's not clear exactly what your schema is.

                  这篇关于在 SQLite 上加入表时如何进行更新?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

                  本站部分内容来源互联网,如果有图片或者内容侵犯了您的权益,请联系我们,我们会在确认后第一时间进行删除!

                  相关文档推荐

                  Group by month in SQLite(在 SQLite 中按月分组)
                  SQL join when a field name is the same(字段名称相同时的 SQL 连接)
                  How do I create a CSV file from database in Python?(如何从 Python 中的数据库创建 CSV 文件?)
                  MySQL create view joining two tables(MySQL 创建视图连接两个表)
                  Efficiently convert rows to columns in SQL Server view(在 SQL Server 视图中高效地将行转换为列)
                  Oracle (11.2.0.1) : How to identify the row which is currently updated by the UPDATE statement(Oracle (11.2.0.1):如何识别当前由 UPDATE 语句更新的行)

                  <small id='bkKch'></small><noframes id='bkKch'>

                  • <bdo id='bkKch'></bdo><ul id='bkKch'></ul>

                        <tbody id='bkKch'></tbody>
                    • <tfoot id='bkKch'></tfoot>
                          <i id='bkKch'><tr id='bkKch'><dt id='bkKch'><q id='bkKch'><span id='bkKch'><b id='bkKch'><form id='bkKch'><ins id='bkKch'></ins><ul id='bkKch'></ul><sub id='bkKch'></sub></form><legend id='bkKch'></legend><bdo id='bkKch'><pre id='bkKch'><center id='bkKch'></center></pre></bdo></b><th id='bkKch'></th></span></q></dt></tr></i><div id='bkKch'><tfoot id='bkKch'></tfoot><dl id='bkKch'><fieldset id='bkKch'></fieldset></dl></div>

                          <legend id='bkKch'><style id='bkKch'><dir id='bkKch'><q id='bkKch'></q></dir></style></legend>