diff --git "a/37\345\274\240\346\255\243\350\261\252/2022-10.07 \345\255\230\345\202\250\350\277\207\347\250\213/\344\275\234\344\270\232/SQLQuery1.sql" "b/37\345\274\240\346\255\243\350\261\252/2022-10.07 \345\255\230\345\202\250\350\277\207\347\250\213/\344\275\234\344\270\232/SQLQuery1.sql" new file mode 100644 index 0000000000000000000000000000000000000000..9cff14db5997f85a807e40ad0a9cc9de466241ea --- /dev/null +++ "b/37\345\274\240\346\255\243\350\261\252/2022-10.07 \345\255\230\345\202\250\350\277\207\347\250\213/\344\275\234\344\270\232/SQLQuery1.sql" @@ -0,0 +1,106 @@ +use BankTest; +select * from AccountInfo --个人信息 +select * from BankCard --银行卡信息 +select * from CardExchange --交易记录 +select * from CardStateChange --银行卡状态更改表 +select * from CardTransfer --转账表 + +--1. 定义存储过程实现查询出账户余额最低的银行卡账户信息,显示银行卡号，姓名，账户余额 +go +create proc proc_CMoney + @MinMoney money output +as +begin + select @MinMoney = min(CardMoney) from BankCard + select CardNo,RealName,CardMoney from BankCard b + join AccountInfo a on a.AccountId = b.AccountId + where CardMoney = @MinMoney +end + declare @MinMoney money + exec proc_CMoney @MinMoney output + go +--2. 模拟银行卡存钱操作，传入银行卡号，存钱金额，实现存钱操作 +go +create proc proc_Cun + @CardNo varchar(20), + @inMoney money +as +begin + insert into CardExchange values (@CardNo,@inMoney,0,getdate()) + update BankCard set CardMoney += @inMoney where CardNo = @CardNo +end + declare @CardNo varchar(20) = '6225125478544587' + declare @inMoney money = 10000 + exec proc_Cun @CardNo,@inMoney + select * from BankCard --银行卡信息 + select * from CardExchange --交易记录 +go +--3. 模拟银行卡取钱操作，传入银行卡号，取钱金额，实现取钱操作，取钱成功，返回1，取钱失败返回-1 +go +-- drop proc proc_outMoney + +create proc proc_outMoney +@cardNum varchar(50), +@outMoney money, +@backNum int output +as +begin + select @backNum = (case when CardMoney >= @outMoney then 1 else -1 end) from BankCard + where CardNo = @cardNum + update BankCard set CardMoney -= @outMoney where CardNo = @cardNum +end +go +--执行 +declare @cardNum varchar(50) = '6225547854125656', +@outMoney money = 1000, +@backNum int +exec proc_outMoney @cardNum,@outMoney,@backNum output +select @backNum +select * from BankCard +--4. 查询出某时间段的银行存取款信息以及存款总金额**，取款总金额， +--传入开始时间，结束时间，显示存取款交易信息的同时，返回存款总金额，取款总金额。 +go +create proc proc_getBankMessage +@openTime smalldatetime, +@overTime smalldatetime, +@InSum money output, +@OutSum money output +as +begin + select @InSum = SUM(MoneyInBank),@OutSum = SUM(MoneyOutBank) from CardExchange + where ExchangeTime between @openTime and @overTime +end +go + +declare @openTime smalldatetime = '2022-09-07 14:30:00', +@overTime smalldatetime = '2022-09-27 08:19:00', +@InSum money,@OutSum money + +exec proc_getBankMessage @openTime,@overTime,@InSum output,@OutSum output +select @InSum 存款总额,@OutSum 取款总额 +--5. **密码升级**，传入用户名和密码，如果用户名密码正确，并且密码长度<8，自动升级成8位密码 +--(提示：随机生成 0-9 的整数： float(rand()*10)) rand():随机生成0.0-1.0的小数 float:向下取整） +go +create proc proc_pwd +@cardNo varchar(50), +@pwd varchar(50) +as +begin + if((select CardNo from BankCard where CardNo = @cardNo) != ' ' + and @pwd = (select CardPwd from BankCard where CardNo = @cardNo and @pwd = CardPwd)) + begin + if(len(@pwd) < 8) + begin + update BankCard set CardPwd = CONCAT(ROUND(99999+RAND()*99999,0),ROUND(RAND()*9,0),ROUND(RAND()*9,0)) where CardNo = @cardNo + end + end + else + begin + print '错误了X_X' + end +end +go +-- 执行 +declare @cardNo varchar(50) = '6225125478544587',@pwd varchar(50) = '123456' +exec proc_pwd @cardNo,@pwd +select * from BankCard \ No newline at end of file diff --git "a/37\345\274\240\346\255\243\350\261\252/2022-10.07 \345\255\230\345\202\250\350\277\207\347\250\213/\347\254\224\350\256\260/\347\254\224\350\256\260.txt" "b/37\345\274\240\346\255\243\350\261\252/2022-10.07 \345\255\230\345\202\250\350\277\207\347\250\213/\347\254\224\350\256\260/\347\254\224\350\256\260.txt" new file mode 100644 index 0000000000000000000000000000000000000000..7cd7e5e544abac5d6ad279b5ac8a2f70dad647cc --- /dev/null +++ "b/37\345\274\240\346\255\243\350\261\252/2022-10.07 \345\255\230\345\202\250\350\277\207\347\250\213/\347\254\224\350\256\260/\347\254\224\350\256\260.txt" @@ -0,0 +1,139 @@ + + +## -- 10.7 瀛樺偍杩囩▼(Stored Procedure) + + + +瀛樺偍杩囩▼鏄**棰勭紪璇**SQL璇彞闆嗗悎锛岃繖浜涜鍙ュ瓨鍌ㄥ湪涓涓悕绉帮紙瀛樺偍杩囩▼鐨勫悕绉帮級涓嬪苟浣滀负鍗曞厓鏉ュ鐞嗐傚瓨鍌ㄨ繃绋嬩唬鏇夸簡浼犵粺鐨勯愭潯鎵цSQL璇彞鐨勬柟寮忥紝涓涓瓨鍌ㄨ繃绋嬩腑鍙互鍖呭惈鏌ヨ銆佹彃鍏ャ佸垹闄ゃ佹洿鏂扮瓑鎿嶇旱鐨勪竴绯诲垪SQL璇彞锛屽綋杩欎釜瀛樺偍杩囩▼琚皟鐢ㄦ墽琛屾椂锛岃繖浜涙搷浣滀篃浼氬悓鏃舵墽琛屻 + +灏佽濂 --> 璋冪敤 + +#### 瀛樺偍杩囩▼鐨勫垎绫 + +##### 绯荤粺瀛樺偍杩囩▼ + + 绯荤粺瀛樺偍杩囩▼鏄敤鏉ョ鐞哠QL Server涓庢樉绀烘湁鍏虫暟鎹簱鍜岀敤鎴风殑淇℃伅鐨勫瓨鍌ㄨ繃绋嬨 + +```sql +sp_databases 鍒楀嚭鏈嶅姟涓婄殑鎵鏈夋暟鎹簱 +sp_helpdb --鎶ュ憡鏈夊叧鎸囧畾鏁版嵁搴撴垨鎵鏈夋暟鎹簱鐨勪俊鎭 +sp_renamedb 鏇存敼鏁版嵁搴撶殑鍚嶇О +sp_tables --杩斿洖褰撳墠鐜涓嬪彲鏌ヨ鐨勫璞＄殑鍒楄〃 +sp_columns 杩斿洖鏌愪釜琛ㄥ垪鐨勪俊鎭 +sp_help --杩斿洖鏌愪釜琛ㄧ殑鎵鏈変俊鎭 +sp_helpconstraint 鏌ョ湅鏌愪釜琛ㄧ殑绾︽潫 +sp_helpindex --鏌ョ湅鏌愪釜琛ㄧ殑绱㈠紩 +sp_stored_procedures 鍒楀嚭褰撳墠鐜涓殑鎵鏈夊瓨鍌ㄨ繃绋 +sp_password --娣诲姞鎴栦慨鏀圭櫥褰曡处鎴风殑瀵嗙爜 +sp_rename 閲嶅懡鍚嶅瓨鍌ㄨ繃绋 +sp_helptext 鏄剧ず榛樿鍊硷紝鏈姞瀵嗙殑瀛樺偍杩囩▼銆佺敤鎴峰畾涔夌殑瀛樺偍杩囩▼銆佽Е鍙戝櫒鎴栬鍥剧殑瀹為檯鏂囨湰銆 +``` + + + +##### 鑷畾涔夊瓨鍌ㄨ繃绋 + +**鍒涘缓瀛樺偍杩囩▼** + +1.娌℃湁杈撳叆鍙傛暟锛屾病鏈夎緭鍑哄弬鏁扮殑瀛樺偍杩囩▼銆 + +```sql +create proc <瀛樺偍杩囩▼鍚嶇О> +as + +go +``` + +2.鏈夎緭鍏ュ弬鏁帮紝娌℃湁杈撳嚭鍙傛暟鐨勫瓨鍌ㄨ繃绋 + +```sql +create proc <瀛樺偍杩囩▼鍚嶇О> +<鍙橀噺1> <鏁版嵁绫诲瀷> +<鍙橀噺2> <鏁版嵁绫诲瀷> +... +as + +go +``` + +3.鏈夎緭鍏ュ弬鏁帮紝娌℃湁杈撳嚭鍙傛暟锛屼絾鏄湁杩斿洖鍊肩殑瀛樺偍杩囩▼锛堣繑鍥炲煎繀椤绘暣鏁帮級銆 + +```sql +create proc <瀛樺偍杩囩▼鍚嶇О> +<鍙橀噺1> <鏁版嵁绫诲瀷> +<鍙橀噺2> <鏁版嵁绫诲瀷> +... +as + +return 鏁存暟 +go +``` + +4.鏈夎緭鍏ュ弬鏁帮紝鏈夎緭鍑哄弬鏁扮殑瀛樺偍杩囩▼ & 涓涓彉閲忓叿澶囧悓鏃惰緭鍏ヨ緭鍑哄弬鏁扮殑瀛樺偍杩囩▼ + +```sql +create proc <瀛樺偍杩囩▼鍚嶇О> +<鍙橀噺1> <鏁版嵁绫诲瀷> output +<鍙橀噺2> <鏁版嵁绫诲瀷> output +... +as + +return 鏁存暟 +go +``` + + + +**鎵ц瀛樺偍杩囩▼** + +```sql +--鏃犲弬 +exec <瀛樺偍杩囩▼鍚嶇О> +--甯﹀弬 +exec <瀛樺偍杩囩▼鍚嶇О> <褰㈠弬1>,<褰㈠弬2>,... +--甯﹀弬甯﹁繑鍥炲 +declare @鍙橀噺 +exec @鍙橀噺 = <瀛樺偍杩囩▼鍚嶇О> <褰㈠弬1>,<褰㈠弬2>,... +--鏈夎緭鍏ュ弬鏁帮紝鏈夎緭鍑哄弬鏁扮殑瀛樺偍杩囩▼ +declare @鍙橀噺 +exec <瀛樺偍杩囩▼鍚嶇О> <褰㈠弬1>,<褰㈠弬2>,@鍙橀噺 output +--涓涓彉閲忓悓鏃跺叿澶囪緭鍏ヨ緭鍑哄姛鑳 +declare @鍙橀噺 <鏁版嵁绫诲瀷> = 鍊 +exec <瀛樺偍杩囩▼鍚嶇О> <褰㈠弬1>,<褰㈠弬2>,@鍙橀噺 output +``` + + + +**鍒犻櫎瀛樺偍杩囩▼** + +```sql +drop procedure <瀛樺偍杩囩▼鍚嶇О> +``` + + + +#### 瀛樺偍杩囩▼鐨勪紭鐐 + +鍏佽妯″潡鍖栫▼搴忚璁 + +鎵ц閫熷害鏇村揩 + +鍑忓皯缃戠粶娴侀氶噺 + +鎻愰珮绯荤粺瀹夊叏鎬 + + + +#### 瀛樺偍杩囩▼涓庡嚱鏁扮殑鍖哄埆 + +1.鍌ㄥ瓨杩囩▼鍙互鏈夎繑鍥炲间篃鍙互鏃犺繑鍥炲笺傚嚱鏁板繀椤绘湁杩斿洖鍊笺 + +2.瀛樺偍杩囩▼鐨勫疄鐜版瘮杈冨鏉傦紝鑰屽嚱鏁扮殑瀹炵幇姣旇緝鏈夐拡瀵规с + +3.鍌ㄥ瓨杩囩▼鍙互杈撳叆杈撳嚭鍙傛暟锛岃屽嚱鏁板彧鍙互杈撳叆鍙傛暟銆 + +4.杩囩▼鍏佽鍦ㄥ叾涓夋嫨浠ュ強DML璇彞锛岃屽嚱鏁板彧鍙互鍦ㄥ叾涓璼elect璇彞銆 + +5.鍙互鍦ㄥ瓨鍌ㄨ繃绋嬩腑璋冪敤鍑芥暟锛屼笉鍙互鍦ㄥ嚱鏁颁腑璋冪敤瀛樺偍杩囩▼銆 + +6.鍑芥暟鍙互浣滀负鏉′欢鍦ㄨ鍙ヤ腑浣跨敤锛屼絾鏄瓨鍌ㄨ繃绋嬩笉鍙互銆