SQL Server/T-SQL/Insert Delete Update/Batch Insert — различия между версиями

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м (1 версия)
 
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Текущая версия на 10:20, 26 мая 2010

Inserts 12000 rows into a table

CREATE TABLE works_on  (emp_no       INTEGER NOT NULL,
                        project_no    CHAR(4) NOT NULL,
                        job CHAR (15) NULL,
                        enter_date    DATETIME NULL)
insert into works_on values (1, "p1", "analyst", "1997.10.1")
insert into works_on values (1, "p3", "manager", "1999.1.1")
insert into works_on values (2, "p2", "clerk",   "1998.2.15")
insert into works_on values (2, "p2",  NULL,     "1998.6.1")
insert into works_on values (3, "p2",  NULL,     "1997.12.15")
insert into works_on values (4, "p3", "analyst", "1998.10.15")
insert into works_on values (5, "p1", "manager", "1998.4.15")
insert into works_on values (6, "p1",  NULL,     "1998.8.1")
insert into works_on values (7, "p2", "clerk",   "1999.2.1")
insert into works_on values (8, "p3", "clerk",   "1997.11.15")  
insert into works_on values (7, "p1", "clerk",   "1998.1.4")
select * from works_on
GO
      -- This procedure inserts 12000 row in the table works_on
      declare @i integer, @j integer
      declare @job char(20), @enter_date datetime
      declare @project_no char(4)
      declare @dept_no char(4)
      set @i = 1
      set @j = 1
      set @job = "Analyst"
      set @enter_date = GETDATE()
      set @dept_no = "d1"
      while @i < 3001
      begin
        while @j < 5
         begin
          if (@j = 1) set @dept_no = "d1"
          else if (@j = 2) set @dept_no = "d2"
           else if (@j = 3) set @dept_no = "d3"
           else set @dept_no = "d4"
       insert into works_on
           values (@i, @dept_no, @job, @enter_date)
       set @j = @j+1
        end
      set @i = @i+1
      set @j = 1
      end
drop table works_on
GO



Inserts 3000 row into a table

CREATE TABLE employee  (emp_no    INTEGER NOT NULL, 
                        emp_fname CHAR(20) NOT NULL,
                        emp_lname CHAR(20) NOT NULL,
                        dept_no   CHAR(4) NULL)
insert into employee values(1,  "Matthew", "Smith",    "d3")
insert into employee values(2,  "Ann",     "Jones",    "d3")
insert into employee values(3,  "John",    "Barrimore","d1")
insert into employee values(4,  "James",   "James",    "d2")
insert into employee values(5,  "Elsa",    "Bertoni",  "d2")
insert into employee values(6,  "Elke",    "Hansel",   "d2")
insert into employee values(7,  "Sybill",  "Moser",    "d1")
select * from employee
GO

      -- This procedure inserts 3000 row in the table employee
      SET SHOWPLAN_TEXT OFF
      GO
      declare @i integer, @emp_no integer
      declare @emp_Iname char(20), @emp_fname char(20)
      declare @dept_no char(4)
      set @i = 1
      set @emp_Iname = "Smith"
      set @emp_fname = "Jane"
      set @dept_no = "d1"
      while @i < 3001
      begin
      insert into employee
        values (@i, @emp_fname, @emp_Iname, @dept_no)
      set @i = @i+1
      end
select count(*) from employee
GO
drop table employee
GO