From 6b3de7ecba4f2a48dd0ecf0d13cdccddb6934ea3 Mon Sep 17 00:00:00 2001
From: GuanM <30427262+sxhoio@users.noreply.github.com.>
Date: Tue, 19 Nov 2024 16:29:23 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A4=96=E9=94=AE=E7=BA=A6=E6=9D=9F?=
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---
 数据库/头歌/主键约束/主键约束.sh |  2 --
 数据库/头歌/外键约束/外键约束.sh | 11 +++++++++++
 2 files changed, 11 insertions(+), 2 deletions(-)
 create mode 100644 数据库/头歌/外键约束/外键约束.sh

diff --git a/数据库/头歌/主键约束/主键约束.sh b/数据库/头歌/主键约束/主键约束.sh
index 897ed35..bea7747 100644
--- a/数据库/头歌/主键约束/主键约束.sh
+++ b/数据库/头歌/主键约束/主键约束.sh
@@ -1,7 +1,5 @@
 sqlcmd -S localhost -U sa -P '<123123Aa!@>'
 
-在数据库 MyDb 中，创建两张表 t_user1 ， t_user2 ，表结构如下，请为两张表分别创建主键约束， t_user1 的主键为 userId ， t_user2 的主键为联合主键，将字段 name 和 phone 作为 t_user2 的联合主键。
-
 CREATE DATABASE MyDb;
 go
 
diff --git a/数据库/头歌/外键约束/外键约束.sh b/数据库/头歌/外键约束/外键约束.sh
new file mode 100644
index 0000000..e3fbd20
--- /dev/null
+++ b/数据库/头歌/外键约束/外键约束.sh
@@ -0,0 +1,11 @@
+sqlcmd -S localhost -U sa -P '<123123Aa!@>'
+
+CREATE DATABASE MyDb;
+go
+
+USE MyDb;
+go
+CREATE TABLE t_class (id INT PRIMARY KEY, name VARCHAR(22));
+go
+CREATE TABLE t_student (id INT PRIMARY KEY, name VARCHAR(22), classId INT ,CONSTRAINT fk_stu_class1  FOREIGN KEY (classId) REFERENCES t_class(id));
+go
\ No newline at end of file