WHERE name IN ('Google','菜鸟教程'); 1. 2. IN 与 = 的异同 相同点:均在WHERE中使用作为筛选条件之一、均是等于的含义 不同点:IN可以规定多个值,等于规定一个值 IN SELECT column_name(s) FROM table_name WHERE column_name IN (value1,value2,...); = SELECT column_name(s) FROM table_name...
使用关联查询,并用组合的字段,起别名的方式过滤,报错提示:SQL 错误 [1052] [23000]: Column 'code' in where clause is ambiguous selectconcat(ti.code,'-', sti.code)ascode, sti.*, ti.nameastask_namefromsub_task_info stileftjointask_info tionti.id=ti.task_idwherecodelike'%001%'; 解决方案1...
在编写SQL查询语句时，确保字段名正确至关重要。如果merchid字段确实不存在于该表中，那么在where子句中使用该字段名会导致SQL错误，如“Unknown column 'merchid' in 'where clause'”。建议进行以下步骤来解决这个问题：1. 验证字段名：重新检查表结构，确保merchid字段确实存在于其他表中，例如`ims_ew...
SQL语句出现Unknown column ‘xxx’ in ‘where clause错误,从报错信息我们很容易得出列名称不存在的结论,但是,很多时候并不是列名出错造成的,而是由于拼凑sql语句时对字符类型数据没有用引号引起来造
limit 0, 10]; Column 'created_by' in where clause is ambiguous; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'created_by' in where clause is ambiguous 原因: 说明SQL语句中有重复的created_by功能调用,并且在Mapper文件中,多表关联查询中有相同的...
java.sql.SQLSyntaxErrorException: Unknown column 'XXX' in 'where clause' at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120) ~[mysql...
WHERE Clause with UPDATE Statement The UPDATE statement is used to modify the existing records in a table. Using the SQL WHERE clause with the UPDATE statement, we can update particular records. If the WHERE clause is not used, the UPDATE statement would affect all the records of a table. ...
Unknown column 'ID' in 'where clause 这句话的大概意思是，未知的列'ID'，在where 子句里。从 [ids] => ID-1002,ID-1000 这里可以看出，应该是数据库将 ID-1002 当成计算公式，所以会出现 “未知的列'ID'” 错误提示，其原因在于：ID-1002 没有使用 双引号或单引号 包括起来，表示这是...
WHERE Clause Syntax Operators in WHERE Clause Equality Operator in WHERE Comparison Operators in WHERE Logical Operators in WHERE Using an IN Operator What You Cannot Use in a WHERE Clause Learn More About WHERE We explain how to use the SQL WHERE clause with practical examples. If you have ju...
The following operators can be used in the WHERE clause:OperatorDescriptionExample = Equal Try it > Greater than Try it < Less than Try it >= Greater than or equal Try it <= Less than or equal Try it <> Not equal. Note: In some versions of SQL this operator may be written as !=...