sql uses to extract records from database

PHP uses regular expressions to extract four of columns of data, and to bulk import data into MySQL database >>>>[0601_Access_S5352]dis arp>>>>IP ADDRESS MAC ADDRESS EXPIRE(M) TYPE INTERFACE VPN-INSTANCE>>>>-------------------------------------------------------------------------->>>>192.168.66.11 0016-413e-0c62 SF- GE0/0/23

Read Excel records and import SQL database, excel import SQL database Prepare. Import the Excel data to the database in the near future.Reference namespace: using System.Configuration;using System.Data;using System.Data.OleDb;usin

Oracle 11gR2 uses RMAN to copy full-database records Oracle 11gR2 uses RMAN to copy full-database records TNS and listener are configured on the source and target ends (11g dynamic listening sys cannot log on in nomount status, an

VALUES (")INSERT into @tempTable VALUES (' #region ' [email protected])INSERT into @tempTable VALUES (' Public sealed class ' [email protected]+ ' {')INSERT into @tempTable the Select ' Public const string ' +name+ ' = ' +name+ ' "; ' From syscolumns WHERE ID in(SELECT ID from sysobjects WHERE [email protected])INSERT into @tempTable VALUES ('} ')INSERT into @tempTable VALUES (' #endregion ')INSERT into @tempTable VALUES (")SET @tableIndex +=1ENDSELECT * from @tempTableResults of the Buildresul

We often want to randomly select data from a data table, such as randomly generating test papers. The newid () method of SQL Server can easily achieve this goal. The newid () method returns a guid, such as the EE95A489-B721-4E8A-8171-3CA8CB6AD9E4 In the Select Table, add a column newid. SQL statement: Select *, newid () from table In this way, each record will have a random guid value. We can sort th

Tags: mysql date_sub SQL statement query one week data record JdbcTemplateIn the JSP page according to the posting time of the forum post to query the post record, front JSP page code is as follows:The Java code in the background is as follows:Private listThe Java language uses the Date_sub () function from the MySQL database to query data

the name of the inserted table and save the result in a different table INSERT into #HK_STK_PRICE_IDX (LIST_DATE,LTTTRDATE,EDATE,PSVPCLNGPRARC,PSVOPNGPRARC,PSVCLNGPRARC,PSVHTPR, Psvltpr,trvol,trto)SELECTc.list_date,b.edate,a.enddate,b.psvpclngprarc,b.psvopngprarc,b.psvclngprarc,b.psvhtpr,b.psvltpr,b.trvol,b. Trto from#TRADE_DAY A CrossAPPLY (SELECT TOP 1 * from#STK_MKTWHEREEDATEA.enddate andList_datea.enddateORDER byEDATEDESC) B CrossAPPLY (SELECT TOP 1 * from#LIST_DATEWHEREList_dateA.endd

In our daily operations, we inevitably have a table on the database, to insert more than one record, but the first thought is to copy, paste n more than repeated insert into the statement, in case one less a semicolon, or more than a comma, and so on, to create errors, to find can be exhausted, not only waste time, and delayed work. In addition to the method mentioned above, there are actually two methods, compared to the previous one should be conci

Share the following method of deleting duplicate records in a database with an SQL statement.For example, there is now a person table (table name: peosons)If you want to name, ID, address, the three fields exactly the same record querySelect p1.* from Persons p1,persons P2 where p1.idCan achieve the above effect.Several SQL