ID || '.' || CURRENT_VALUE; --拼接查询字符串 QUERY_ITEMS := QUERY_ITEMS || ',' || CURRENT_VALUE; END IF; ELSE CONDITIONS := CONDITIONS || ' = ' || ALIAS || '.' || CURRENT_VALUE || ' '; END IF; --循环值减1 SIGNS := SIGNS - 1; END LOOP; --拼接关联SQL TARGET_RE...
等于0时为第一个字符,否则为第二个IF CALCULATED=0THEN--判断是否为最大值,最大值时为第一个条件,无需加ANDIF SIGNS=SI_MAXTHENCONDITIONS :=CONDITIONS||F_ALI||L_ID||'.'||CURRENT_VALUE;ELSECONDITIONS :=CONDITIONS||'AND '||F_ALI||L_ID||'.'||CURRENT_VALUE;ENDIF;ELSECONDITIONS :=CONDITIONS...
<if test="query == 0"> and t.status = 1 </if> <if test="query != 0"> and t.status NOT IN (2,3,4) </if> and t.delete_flag = 1 </where> 方法二:使用choose标签代替if-else。 select * from orcl_test t <where> <choose> <when test="query == 0"> and t.status = 1 ...
An example given below forOracle Forms, when a value exists thenexecute queryfor that value to display the correspondent record else allow user to create a new record for that value. The following is the example given for HR schema employee table, in this example user will enter an empoyee ...
mysql触发器中如何定义变量类型 mysql触发器ifelse,触发器是由MySQL的基本命令事件来触发某种特定操作,这些基本的命令由INSERT、UPDATE、DELETE等事件来触发某些特定操作。满足触发器的触发条件时,数据库系统就会自动执行触发器中定义的程序语句。这样可以令某些操作之间
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(id, value) } // 创建Slick查询对象 val query = TableQuery[MyTable] // 定义IF ELSE逻辑的查询 val condition = true // 设置条件,可以根据实际情况修改 val result = query.filterIf(condition, _.id === 1).result // 执行查询并打印结果 val db = Database.forConfig("mydb") val future...
The database processes the expression from top-to-bottom. It returns the value for the firstwhenclause that is true. If none are true (the percentage is less than 50 or null), it returns the value in theelseclause which is F.
0 If data exists, else... using Oracle SQL? 2 Oracle Sql If exists then do this else do that 1 IF EXIST clause 1 How to create a IF NOT EXISTS query in Oracle? 0 EXISTS / NOT EXISTS in SQL 0 how to write this not Exists sql 0 NOT EXIST clause 0 SQL query to check...
I want to create a query in oracle that looks like thisDECLARE my_count NUMBER; BEGIN SELECT COUNT(table.column1) INTO my_count FROM table; IF my_count > 2 THEN SELECT * FROM table WHERE table.column2 = 'ABC'; ELSE SELECT * FROM table WHERE table.column2 != 'ABC'; END IF; ...