Tags: des style blog color io strong for ARsql:structured Query LanguageOne, objectives in this chapter:
Invoke the SQL procedure
Select columns
Define New columns
Specify the table (s) to read
Specify subsetting criteria
Order rows by values of one or more columns
Group results by values of one or more columns
End the SQL procedure
Summarize data
Generate a repo
("%V;", Outparam)if out!=""{_sql = Fmt. Sprintf ("%v%vselect%v;", _sql, Outparam, out) }Else{_sql = Fmt. Sprintf ("%v%v", _sql, Outparam)}return_sql}
The principle is this, the need to directly send SQL statements to the database, SQL Server is exec proc,mysql is call exec, the format of EXEC
("%V;", Outparam)if out!=""{_sql = Fmt. Sprintf ("%v%vselect%v;", _sql, Outparam, out) }Else{_sql = Fmt. Sprintf ("%v%v", _sql, Outparam)}return_sql}
The principle is this, the need to directly send SQL statements to the database, SQL Server is exec proc,mysql is call exec, the format of EXEC
The following is a complete example of the first three dynamic SQL statements of Proc.
(1) Dynamic sql1: it cannot be a query (select) Statement, and there is no host variable.Usage: spell a dynamic SQL statement and execute it with execute immediate, for example:Exec SQL execute immediate CREATE TABLE test (test_col v
restrict*/6 ORDER by column-1,...,column-N>>;/*ORDER BY: Sorts the results of a query based on subsequent variables*/Remarks: The clauses in the PROC SQL SELECT statement need to be arranged in the order described above.Three, Displaying all Columns 1. Use SELECT *: All columns can be rendered1 proc SQL; 2
Label:Stored procedures are like C # methods 1. The thing is written in the process, directly call the stored procedure 1.1 Procedure with no parameters /*transaction things, procedure stored procedures */
CREATE proc copytable_1_10000 as
begin tran--Things
declare @tran_ The error int;--declares the parameter
set @tran_error =0;--assigns a value to the parameter
declare @i int,@y int;
Set @i=10000;set @y=1;
/* When the new table does not exist, copy
Minute
MI, n
Second
SS, S
Millisecond
Ms
specifically to my question, need to be on the basis of the original record minus 15 minutes, the condition is all this morning late attendance record, see the following sql:UpdateKaoqin SetSj=DateAdd(MI,- the, SJ) where(SJ>'2007-8-15 08:00:00'Subtract time only needs to set number to the corresponding negative value on the line. SQL Dat
In Linux, how does one change the database script file from the sh format to the SQL format,
In the process of software development, it often involves changing the database script file from sh format to SQL format in Linux. This d
"Customer Name": Guizhou Tongren driving Person Training Center"Software name": UF T3 Universal Edition"Database Version": MS SQL Server 2000 "database size": 1GB X 6 (3 accounts for a total of 6 years)."Problem description": Due to server poisoning or Kaka, the customer sent the server computer to the installed shop to redo the operating system. Not detailed to inform the use of the computer, resulting in the entire hard drive by the repair shop tech
the sh file, list all functions contained in this document in order, such as the functions included in this document are Init and createtable.
2. Process of generating SQL files
(1) Upload sh file
Use the FTP tool (such as FileZilla) to upload the example.sh file to the corresponding directory on Linux.
(2) using the Dos2unix command to modify the file format
Because the example.sh file is written und
In the process of software development, it often involves changing the database script file from sh format to SQL format in Linux. This document uses an actual script file as an example to describe
In the process of software development, it often involves changing the database script file from sh format to
CONVERT (varchar (10), field name, conversion format)CONVERT (nvarchar), count_time,121Convert is a date conversion function, typically in the time type (Datetime,smalldatetime) and the string type (Nchar,nvarchar,char,varchar)The 3 parameters of the function are used when converting to each other, the 1th parameter is the converted size, the 2nd is the field or function of the conversion date, and the 3rd is the converted format.Specific as follows:0
difference between Date2 and date1 two dates in the interval specified date2-date1DATEADD (interval,number,date) with the date specified in interval, plus numberDatePart (interval,date) returns the integer value corresponding to the specified portion of the date, intervalDatename (interval,date) returns the name of the string that corresponds to the specified part of the date, interval The setting values for the parameter interval are as follows: Value abbreviations (
Tags: style blog color os sp for file div onINSERT into VALUES ('AAA'201023210816') ;Change the SQL format above to the following formatAaa|201023210816|22Importoslists=[]paths=OS.GETCWD () forRoot,dirs,filesinchOs.walk ('Wfyh'): forFninchfiles:lists.append (FN) forNmbinchLists:dfile=open ("wfyh\\"+NMB,'R') NMBB=nmb.replace ('. SQL',"') ofile=open ("wf_test\
Import SQL Server from an earlier version native format data and character format dataIn SQL Server 2014, you can use BCP with the-v switch, from SQL Server 2000, SQL Server 2005, SQL S
ObjectiveFor a long time did not write a blog, people become lazy a lot, should say originally also not very diligent. But today for this tool, you have to be diligent, there really is no free lunch.The Query Designer and Toad for Oracle, which used SQL Server 2000 before, have the ability to format SQL statements, which is very handy, especially for those of me
Tags: TTY store picture API products Click function Blank LANIn SQL Server we often need to write a variety of SQL scripts, such as stored procedures and functions, because in the process of writing, often adjust, the format is very messy, poor readability. For people with obsessive-compulsive disorder, it's very painful to look at code like this, and it's very t
, 2009 Monday pm) According to ' date of month, day of the week, morning afternoon 'Select Datename (Yy,getdate ()) + ' year ' +Datename (Mm,getdate ()) + ' month ' +Datename (Dd,getdate ()) + ' Day ' +Datename (Weekday,getdate ()) +Case when Datename (Hh,getdate ()) --2. Write the function, depending on the input time. The day of the year is outputSelect DATEPART (dy,getdate ())--3. Finding random output characters ' A-ZSelect char (97+abs (checksum (NEWID))%26)Select char (97+rand () *26)
INSERT into TTT (Nsame, ID, age) VALUES (' AAA ', ' 201023210816 ', ' 22 ');Change the SQL format above to the following formatAaa|201023210816|22Import oslists=[]paths = OS.GETCWD () for root,dirs,files in Os.walk (' Wfyh '): For fn in files: lists.append (FN) For NMB in lists: dfile=open ("wfyh\\" +NMB, ' R ') nmbb=nmb.replace ('. sql ', ') o
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