foreach 只能应用于数组,自 PHP5 起,还可以遍历对象。 foreach 语句有两种语法格式,第二种比较次要但却是第一种有用的扩展。 //第一种格式 foreach (array_expression as $value){ statement } //第二种格式 foreach (array_expression as $key => $value){ statement }
Workaround for FOR EACH STATEMENT 3065 Chris Hennick August 07, 2009 07:55PM Sorry, you can't reply to this topic. It has been closed. Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily rep...
foreach标签主要用于构建in条件,它可以在sql中对集合进行迭代,通常可以将之用到批量删除、添加等操作中,示例如下: <delete id="deleteBatch"> delete from user where id in <foreach collection="array" item="id" index="index" open="(" close=")"separator=","> #{id} </foreach> </delete> 1. ...
<selectKey resultType ="java.lang.Integer"keyProperty="iid"order="AFTER">SELECT LAST_INSERT_ID()</selectKey >insert into foreach_test (name, age, idx) values<foreachitem="st"collection="list"index="idx"open=""separator=","close="">(#{st.name, jdbcType=VARCHAR}, #{st.age, jdbcType=I...
when_value 参数表示变量的取值,如果某个 when_value 表达式与 case_value 变量的值相同,则执行对应的 THEN 关键字后的 statement_list 中的语句; statement_list 参数表示 when_value 值没有与 case_value 相同值时的执行语句。 CASE 语句都要使用 END CASE 结束。
declare can_not_find condition for sqlstate 'HU123'; //方法二:使用 mysql_error_code declare can_not_find condition for 1089 ; 3.2 定义异常处理程序 代码语言:txt AI代码解释 基本语法如下: declare handler_type handler for condition_value[...] sp_statement ...
To perform escaping properly for each statement, callmysql_real_escape_string_quote()as follows, where the final argument indicates the quoting context: 1)len=mysql_real_escape_string_quote(&mysql,to,from,from_len,'\'');2)len=mysql_real_escape_string_quote(&mysql,to,from,from_len,'"')...
其次选中 “Generate DROP Statements Before Each Create Statement” 和 “Generate DROP SCHEMA” 第一个用来生成Drop Table语句,第二个用来生产Drop Schema语句,就是说在创建之前先删除原来的; 再次,点击Next。 第二部中: 选中“Export MySQL Table Objects”,然后点击下一步,如图: ...
For each of them to be installed, use a separate INSTALL PLUGIN statement. Each statement names a different plugin, but all of them specify the same library name. INSTALL PLUGIN causes the server to read option (my.cnf) files just as during server startup. This enables the plugin to ...
Hi All, I'm having major frustrations updating a table using an array generated from a form. The array posts fine, the sql query is generated fine in the foreach statement, but only one changed row in the array will update, no matter how I combine them. Here's the code: ...