SQL Server的基础语法其实很简单,这里我们也不说一些比较复杂的语法结构了。相关基础语法如下:
Select
SELECT "栏位" FROM "表格名";
Distinct
SELECT DISTINCT "栏位"
FROM "表格名";
Where
SELECT "栏位"
FROM "表格名"
WHERE "条件";
And/Or
SELECT "栏位"
FROM "表格名"
WHERE "简单条件"
{[AND|OR] "简单条件"}+;
In
SELECT "栏位"
FROM "表格名"
WHERE "栏位" IN ('值1', '值2', ...);
Between
SELECT "栏位"
FROM "表格名"
WHERE "栏位" BETWEEN '值1' AND '值2';
Like
SELECT "栏位"
FROM "表格名"
WHERE "栏位" LIKE {模式};
Order By
SELECT "栏位"
FROM "表格名"
[WHERE "条件"]
ORDER BY "栏位" [ASC, DESC];
Count
SELECT COUNT("栏位")
FROM "表格名";
Group By
SELECT "栏位1", SUM("栏位2")
FROM "表格名"
GROUP BY "栏位1";
Having
SELECT "栏位1", SUM("栏位2")
FROM "表格名"
GROUP BY "栏位1"
HAVING (栏位);
Create Table
CREATE TABLE "表格名"
("栏位 1" "栏位 1 资料种类",
"栏位 2" "栏位 2 资料种类",
... );
Drop Table
DROP TABLE "表格名";
Truncate Table
TRUNCATE TABLE "表格名";
Insert Into
INSERT INTO "表格名" ("栏位1", "栏位2", ...)
VALUES ("值1", "值2", ...);
Update
UPDATE "表格名"
SET "栏位1" = [新值]
WHERE "条件";
Delete From
DELETE FROM "表格名"
WHERE "条件";
以上是一些常见的基础语法,还有一些其他的语法我们之后再分享给大家