diff --git a/delete using subquery.sql b/delete using subquery.sql new file mode 100644 index 0000000..190b0d4 --- /dev/null +++ b/delete using subquery.sql @@ -0,0 +1,9 @@ +USE Study +GO + +SELECT * FROM EMPTEST + +DELETE EMPTEST +WHERE DNO = (SELECT DNO FROM DEPARTMENT WHERE DNAME = 'Accounting') + +SELECT * FROM EMPTEST \ No newline at end of file diff --git a/delete.sql b/delete.sql new file mode 100644 index 0000000..447eace --- /dev/null +++ b/delete.sql @@ -0,0 +1,16 @@ +USE Study +GO + +SELECT * FROM DEPTEST + +DELETE DEPTEST -- 모든 튜플 삭제 + +SELECT * FROM DEPTEST + +SELECT * FROM EMPTEST + +DELETE EMPTEST +WHERE SALARY < 400; + +SELECT * FROM EMPTEST + diff --git a/insert multi tuples.sql b/insert multi tuples.sql new file mode 100644 index 0000000..a202c69 --- /dev/null +++ b/insert multi tuples.sql @@ -0,0 +1,13 @@ +USE Study +GO + +CREATE TABLE DEPT01( + DNO INT, + DNAME VARCHAR(20), + ADDRESS VARCHAR(20), +) + +INSERT INTO DEPT01 +VALUES + (200, 'dept001', 'seoul'), + (201, 'dept002', 'incheon') \ No newline at end of file diff --git a/insert test table.sql b/insert test table.sql new file mode 100644 index 0000000..7f7c65a --- /dev/null +++ b/insert test table.sql @@ -0,0 +1,13 @@ +USE STUDY +GO + +CREATE TABLE EMPTEST( + ENO INT, + ENAME NVARCHAR(20), + JOB NVARCHAR(20), + MANAGER INT, + HIREDATE DATETIME, + SALARY INT, + COMMISSION INT, + DNO INT +) \ No newline at end of file diff --git a/insert using subquery.sql b/insert using subquery.sql new file mode 100644 index 0000000..fb50077 --- /dev/null +++ b/insert using subquery.sql @@ -0,0 +1,5 @@ +USE Study +GO + +INSERT INTO EMPTEST + SELECT * FROM EMPLOYEE WHERE DNO = 30 \ No newline at end of file diff --git a/insert.sql b/insert.sql new file mode 100644 index 0000000..30ca5b3 --- /dev/null +++ b/insert.sql @@ -0,0 +1,11 @@ +USE Study +GO + +INSERT INTO EMPTEST +VALUES (50, '홍길동', 'staff', NULL, '2022-01-01', 500, 30, 10) + +INSERT INTO EMPTEST (ENO, ENAME) +VALUES (51, '심청이') + +INSERT INTO EMPTEST +VALUES (52, '임꺽정', NULL, NULL, NULL, NULL, NULL, NULL) \ No newline at end of file diff --git a/select into.sql b/select into.sql new file mode 100644 index 0000000..1952495 --- /dev/null +++ b/select into.sql @@ -0,0 +1,6 @@ +USE Study +GO + +SELECT DNO, DNAME INTO DEPTEST +FROM DEPARTMENT +WHERE DNO = 30 \ No newline at end of file diff --git a/table structure copy (select into).sql b/table structure copy (select into).sql new file mode 100644 index 0000000..ec3a77b --- /dev/null +++ b/table structure copy (select into).sql @@ -0,0 +1,7 @@ +USE Study +GO + +-- 테이블 구조만 복사 +SELECT * INTO DEPT_COPY +FROM DEPARTMENT +WHERE 1 > 2 -- 항상 거짓이 되는 조건 \ No newline at end of file diff --git a/table structure select.sql b/table structure select.sql new file mode 100644 index 0000000..e932b87 --- /dev/null +++ b/table structure select.sql @@ -0,0 +1,6 @@ +USE Study +GO + +SELECT * FROM DEPTEST + +EXEC sp_help DEPTEST \ No newline at end of file diff --git a/update by subquery.sql b/update by subquery.sql new file mode 100644 index 0000000..827d262 --- /dev/null +++ b/update by subquery.sql @@ -0,0 +1,10 @@ +USE Study +GO + +SELECT * FROM EMPTEST + +UPDATE EMPTEST +SET MANAGER = (SELECT MANAGER FROM EMPLOYEE WHERE ENO = 101) +WHERE ENO = 50 + +SELECT * FROM EMPTEST \ No newline at end of file diff --git a/update multi properties.sql b/update multi properties.sql new file mode 100644 index 0000000..b2472a8 --- /dev/null +++ b/update multi properties.sql @@ -0,0 +1,10 @@ +USE Study +GO + +SELECT * FROM EMPTEST + +UPDATE EMPTEST +SET SALARY = 300, COMMISSION = 50 +WHERE ENO = 51 + +SELECT * FROM EMPTEST diff --git a/update.sql b/update.sql new file mode 100644 index 0000000..d459dcc --- /dev/null +++ b/update.sql @@ -0,0 +1,15 @@ +USE Study +GO + +SELECT * FROM EMPTEST + +UPDATE EMPTEST +SET SALARY = SALARY * 1.1 + +SELECT * FROM EMPTEST + +UPDATE EMPTEST +SET JOB = 'staff' +WHERE DNO = 30 + +SELECT * FROM EMPTEST