我是SQL的新手。请多多包涵。感谢
我想将记录插入到表名t1中，其中包含一些字段
这些记录来自临时表@t2。
create table t1
(
transid varchar(15) not null primary key,
content varchar(1000),
userid int not null,
dtcreate datetime not null,
)
DECLARE @seqno INT = 1;
DECLARE @t2 TABLE ( userid INT, content VARCHAR(1000), dtcreate DATETIME)
假设我在@t2
我想在t1中插入@ t2（临时表）
中的所有记录INSERT INTO t1 (transid,content,userid,dtcreate)
SELECT (CONVERT(VARCHAR(10), dtcreate, 112)+RIGHT('0000'+CONVERT(VARCHAR, (
@seqno =+ 1)), 5)) , content, userid, dtcreate FROM @t2
这是@seqno =+ 1不允许我这样做的地方。如果我想要这样的东西怎么办？多谢你们。我是一个超级新手。
答案 0 :(得分：0)
首先你要像这样创建你的表
CREATE TABLE t1 (
transid INT NOT NULL AUTO_INCREMENT,
content Varchar(1000),
userid INT Not Null,
dtcreate DateTime not null,
PRIMARY KEY (Transid)
)
AUTO_INCREMENT = 1;
以上查询为您提供表格中的自动增量 比使用这样的查询
INSERT INTO t1 (transid,content,userid,dtcreate)
SELECT transid,content,userid,dtcreate
FROM @t2
答案 1 :(得分：0)
使用row_number（）函数代替@seqno
// SONIC PROTOTYPE CODE
// Written by a complete amateur so take good care!
// This is the code that will go in to my sonic screwdriver
// Hardware includes Adafruit Feather 32U4, Music maker feather wing with amp Adafruit NeoPixel stick
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#include <avr/power.h>
#endif
#define PIN A1
const int sw1 = 2; // This sets the name of the pins
const int sw2 = 3;
const int sw3 = 5;
const int sw4 = 6;
const int sw5 = 9;
const int sw6 = 10;
const int sw7 = 11;
const int sw8 = 12;
struct RGB { //for fire this could posibly reside elsewhere in the script but I'm not too sure where
byte r;
byte g;
byte b;
};
RGB flameColors[] = {
// { 226, 121, 35}, // Orange flame /// select what colour fire you want here
// { 158, 8, 148}, // Purple flame
// { 74, 150, 12}, // Green flame
// { 226, 15, 30} // Red flame
{ 15,50,148} //Blue flame
};
// Number of flame colors
int NUMBER_OF_COLORS = sizeof(flameColors) / sizeof(RGB);
// Tracks the current color
int currentColorIndex = 0;
// The button pin
const int buttonPin = 2;
// Variable for reading the pushbutton status
int buttonState = 0;
// Tracking if it's ok to shift colors or not
bool okToChangeColors = true;
float redStates[8]; // I added these for twinkle
float blueStates[8];
float greenStates[8];
float fadeRate = 0.96;
int totalLEDs = 8; // added for tardis
int ledFadeTime = 5;
Adafruit_NeoPixel strip = Adafruit_NeoPixel(8, A1, NEO_GRB + NEO_KHZ800);
// IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across
// pixel power leads, add 300 - 500 Ohm resistor on first pixel's data input
// and minimize distance between Arduino and first pixel. Avoid connecting
// on a live circuit...if you must, connect GND first.
void setup()
{
pinMode(sw1, INPUT_PULLUP); // the pins for your pull low are set here
pinMode(sw2, INPUT_PULLUP);
pinMode(sw3, INPUT_PULLUP);
pinMode(sw4, INPUT_PULLUP);
pinMode(sw5, INPUT_PULLUP);
pinMode(sw6, INPUT_PULLUP);
pinMode(sw7, INPUT_PULLUP);
pinMode(sw8, INPUT_PULLUP);
strip.begin();
strip.show(); // Initialize all pixels to 'off'
}
void loop()
{
// Some example procedures showing how to display to the pixels:
// if (digitalRead(sw1) == LOW) colorWipe(strip.Color(255, 0, 0), 50, sw1); // Red
// if (digitalRead(sw7) == LOW) colorWipe(strip.Color(0, 255, 0), 50, sw7); // Green
if (digitalRead(sw2) == LOW) skip(150, 0, 150, 250, sw2);
if (digitalRead(sw1) == LOW) BouncingBalls(0, 0, 255, 3, sw1);
if (digitalRead(sw3) == LOW) twinkle (sw3);
// if (digitalRead(sw3) == LOW) colorWipe(strip.Color(0, 0, 255), 50, sw3); // Blue
// if (digitalRead(sw4) == LOW) theaterChase(strip.Color(127, 127, 127), 50, sw4); // White
// if (digitalRead(sw5) == LOW) theaterChase(strip.Color(127, 0, 0), 50, sw5); // Red
// if (digitalRead(sw6) == LOW) theaterChase(strip.Color(0, 0, 127), 50, sw6); // Blue
if (digitalRead(sw4) == LOW) rainbow(20, sw4);
if (digitalRead(sw5) == LOW) rainbowCycle(20, sw5);
if (digitalRead(sw6) == LOW) fire (sw6);
if (digitalRead(sw7) == LOW) theaterChaseRainbow(50, sw7);
//if (digitalRead(sw8) == LOW) tardis(sw8);
if (digitalRead(sw8) == LOW) scanner (sw8);
}
答案 2 :(得分：0)
似乎ROW_NUMBER可以做到这一点。
一个抽象的例子：
DECLARE @T1 TABLE (ID INT)
DECLARE @T2 TABLE (ID INT, VALUE INT)
INSERT INTO @T1 VALUES (1), (4)
INSERT INTO @T2 SELECT *, (ROW_NUMBER() OVER(ORDER BY ID))+100 FROM @T1
SELECT * FROM @T1
SELECT * FROM @T2
将其应用于您的代码：
declare @t1 table
(
transid varchar(15) not null primary key,
content varchar(1000),
userid int not null,
dtcreate datetime not null
)
DECLARE @t2 TABLE ( userid INT, content VARCHAR(1000), dtcreate DATETIME)
INSERT INTO @t1 (transid,content,userid,dtcreate)
SELECT (CONVERT(VARCHAR(10), dtcreate, 112)+RIGHT('0000'+CONVERT(VARCHAR, (
row_number() over(order by userid))+100), 5)) , content, userid, dtcreate FROM @t2
我认识到的一个问题是你不能省略ORDER BY，希望这不是问题。
答案 3 :(得分：0)
var url= '/Service/Grid';
$("#DivID").load(url);
以下是OutPut
DECLARE @seqno INT = 1;
DECLARE @t2 TABLE ( userid INT, content VARCHAR(1000), dtcreate DATETIME)
INSERT INTO @t2 ( content, userid, dtcreate )
SELECT 'AA',1,'2017-01-05'
SELECT @seqno = ROW_NUMBER()OVER(Order by transid)+1 From t1
--SELECT @seqno
INSERT INTO t1 (transid,content,userid,dtcreate)
SELECT (CONVERT(VARCHAR(10), GETDATE(), 112)+RIGHT('0000'+CONVERT(VARCHAR(50), (@seqno)), 5)) As seqno
, content, userid, dtcreate FROM @t2
SELECT * from t1
答案 4 :(得分：0)
示例：
DECLARE @t2 TABLE
(
content VARCHAR(10) ,
userid INT ,
dtcreate DATETIME
)
INSERT INTO @t2
( content, userid, dtcreate )
VALUES ( 'A', 20, '2017.01.01' ),
( 'B', 21, '2017.01.02' ),
( 'C', 22, '2017.01.03' ),
( 'D', 23, '2017.01.04' )
;
WITH CTE
AS ( SELECT ctr ,
content ,
userid ,
dtcreate
FROM ( SELECT ROW_NUMBER() OVER ( ORDER BY userid ASC ) ctr ,
content ,
userid ,
dtcreate
FROM @t2
) T
)
---INSERT INTO t1
--- ( transid ,
--- content ,
--- userid ,
--- dtcreate
--- )
SELECT ( CONVERT(VARCHAR(10), dtcreate, 112) + RIGHT('0000'
+ CONVERT(VARCHAR, ctr),
5) ) transid ,
content ,
userid ,
dtcreate
FROM CTE
结果：
transid content userid dtcreate
--------------- ---------- ----------- -----------------------
2017010100001 A 20 2017-01-01 00:00:00.000
2017010200002 B 21 2017-01-02 00:00:00.000
2017010300003 C 22 2017-01-03 00:00:00.000
2017010400004 D 23 2017-01-04 00:00:00.000