How to cycle with an array in MySQL?(如何在 MySQL 中循环使用数组?)

How to retrieve hierarchical data from a SQL Table?(如何从 SQL 表中检索分层数据?)

How to get next minimum date that is not within 30 days and use as reference point in SQL?(如何获得不在 30 天内的下一个最小日期并用作 SQL 中的参考点?)

MySQL and PDO: Could PDO::lastInsertId theoretically fail?(MySQL 和 PDO:理论上 PDO::lastInsertId 会失败吗?)

Doctrine: ON DUPLICATE KEY UPDATE(学说:关于重复密钥更新)

How to make a case-insensitive unique column in SQLite(如何在 SQLite 中创建不区分大小写的唯一列)

When should I use transactions in my queries?(什么时候应该在查询中使用事务?)

get number of rows with pdo(使用 pdo 获取行数)

SQLSTATE[42000]: Syntax error or access violation: 1066 Not unique table/alias on relationship(SQLSTATE[42000]:语法错误或访问冲突:1066 不是唯一的表/关系别名)

Why is creating Foreign Key in Laravel 5.8 failing?(为什么在 Laravel 5.8 中创建外键失败?)

IN statement in Eloquent(Eloquent 中的 IN 语句)

Laravel Eloquent how to create UNIQUE constraint with duplicate NULLs(Laravel Eloquent 如何创建具有重复 NULL 的 UNIQUE 约束)

How to select items from a table based on one value if another value does not exists? (eloquent/sql)(如果另一个值不存在，如何根据一个值从表中选择项目?(雄辩/sql))

How to get data from parent and child table on the basis of status where foreign key have different status for every row(如何根据外键每行具有不同状态的状态从父表和子表中获取数据)

Laravel 4: multiple where with or in eloquent(Laravel 4:多个 where with 或 in eloquent)

Laravel Nested Select + MySQL(Laravel 嵌套选择 + MySQL)

How can I convert conditional aggregation mysql to laravel query?(如何将条件聚合 mysql 转换为 Laravel 查询?)

Eloquent: Calling Where on a relation(Eloquent:在关系上调用 Where)

Do I really need to use quot;SET XACT_ABORT ONquot;?(我真的需要使用“SET XACT_ABORT ON吗?)

How to rollback a transaction in TSQL when string data is truncated?(字符串数据被截断时如何回滚TSQL中的事务?)