sql query builder

Now the development system involves querying by page. when doing this, I am thinking, whether or not the query SQL statement can be automatically encapsulated by parameters into the ability to count the data size of the query statement that is not queried by page. for example, the general practice is: 1. first query ba

The SQL statement is used to query the Index usage and the index status of the SQL statement. SELECT sch.name + '.' + t.name AS [Table Name], i.name AS[Index Name], i.type_desc, ISNULL(user_updates,0) AS [Total Writes], ISNULL(user_seeks +user_scans + user_lookups,0) AS [Total Reads], s.last_user_seek, s.last_user_scan , s.last_user_lookup, ISN

This issue is especially important for projects with a relatively large scale. If there are hundreds of stored procedures in the database,I can't find them one by one. Even if I understand the business and system very well, it will take a long time to remember.How can I use SQL statements for queries?The following describes how to query SQL statements:Copy codeTh

--Find all parent nodesWith TAB as(Select Type_id,parentid,type_name from sys_paramtype_v2_0 where type_id=316--child nodesUNION ALLSelect B.type_id,b.parentid,b.type_nameFromtab a,--child node datasetsSys_paramtype_v2_0 B--parent node data setWhere a.parentid=b.type_id--the child node DataSet. Parendid= The parent node data set. Id)SELECT * from tab;--Find all child nodesWith TAB as(Select Type_id,parentid,type_name from sys_paramtype_v2_0 where type_id=1--parent nodeUNION ALLSelect B.type_id,b

Tags: style time span stat name not sel tab DUPI'm using a statement to save the queried data to a new table 1) using the into table statement, the new table that needs to be saved does not need to be created in advance Select * to from table-Insert new Table statement into TableName 2) using the Insert Table statement, the new table that needs to be saved does not need to be created in advance CREATE TABLE [dbo].[newtable]( [Fdsequenceid][bigint] not NULL, [Fdinnertime][Da

Analysis of SQL Server's focus on using indexes and query execution plans and SQL Execution plans Preface In the previous article "Analysis of the Impact of SQL Server focused indexes on non-clustered indexes", we talked about the impact of clustered indexes on non-clustered indexes and the performance optimization tha

The SELECT clause is logically the last step in the final processing of the SQL statement, so the following query will have an error: SELECT year (OrderDate asorderyearCOUNT(DISTINCT CustomerID fromdboGROUP by OrderYear; Because group by was preceded by a SELECT, the OrderYear column was not formed at that time. If you want to query for su

Theoretical background1. sql:structured Query Language is the standard language for querying and managing data for RDBMS (relational Database Management Systems).2. Understanding set theory and predicate logic, RDBMS is based on these two mathematical branches.3. SQL statement Category:Data definition Language, DDL: The definition language, which handles the definition of objects, including statements such

In the process of paging data using temporary tables, it is found that the query statement conditions are passed through the stored procedure parameters. The parameter conditions cannot be directly used after the SQL where statements are added. There is only one solution to this problem, it is to concatenate SQL statements and conditions into an

SELECT type,--clerk type sum (virtual_memory_reserved_kb) as vm_reserved_kb,--reserved Memory sum (VIRTUAL_MEMORY_COMMITTED_KB) as VM_COMMITTED_KB,--committed memory sum (awe_allocated_kb) as awe_allocated_kb,--the memory sum (shared_memory_reserved_kb) as SM used when opening awe _RESERVED_KB,--shared reserved memory sum (shared_memory_committed_kb) as sm_committed_kb,--shared commit memory sum (single_pages_kb) as SINLGEPAGE_KB,--Buffer pool stolen Memory sum (multi_pages_kb) as multipage_kb--

1. The query statement is select * from t_table; The exported data format is as follows:2. Back up the data text, then open it using notepad++, then copy the data to the new TXT and replace it as follows:1) will "| "Delimiter (delimiter of different fields), replace with ', ' is the delimiter of the different fields in the SQL statement;2) Leave the leftmost "|" For each row of data "Replace with (') the le

/* Use ms SQL to implement the T-SQL code for Distributed Query of heterogeneous databases */ Exec sp_addrole server 'Ms _ SQL ', '', 'sqloledb', '2017. 18.9.20'Exec sp_add1_srvlogin 'Ms _ SQL ', 'false', null, 'sa', 'capec '/* Create a sqlserver remote connection to the sq

1, first to understand what is called the implementation plan?An execution plan is a query scheme that the database makes based on the statistics of SQL statements and related tables, which are generated automatically by the query optimizer, such as an SQL statement that searches for 1 records from a 100,000-record tab

If your experience in SQL is not rich enough and you have not solved many problems in SQL, read this chapter carefully, it helps you avoid a mistake that is likely to be made frequently! Create a test table first. Create Table # Table1 (ID int identity (1, 1) primary key, col1 int not null, col2 decimal (18, 1 )) Insert data Insert into # Table1 (col1, col2) Select 0, 0.1 Union all select 1, 1.1 Uni

Tags: open window function query desc font where SRC definition nio return1. Recursively query the sub-categories under the parent classification. Table Design: Sql: --CTE Statement (for later versions of MSSQL2005) withCte_testnavi (id,name,pid) as ( --This is the query statement SELECTId,name,pid fromNaviWHEREName=

files/Microsoft SQL Server/mssql10.mssqlserver/MSSQL/data/mydb. mdf d:/program files/Microsoft SQL Server/mssql10.mssqlserver/MSSQL/data/mydb_log.ldf (2 rows affected) */-- 3.2 mobile path use [Master] Go -- 3.2.1 disable all processes declare @ STR varchar (500); Set @ STR = ''; select @ STR = @ STR + 'Kill '+ rtrim (spid) +'; '+ char (13) + char (10) from master. DBO. sysprocesses where dbid = db_id ('my

-- Script used to obtain the connection information of the SQL Server server (based on the original shard creation and writing) Declare@ Dbname sysname,-- The name of the database to be queried (empty for all). The connection information of all databases is queried by default.@ Brief deip bit-- Whether to display the IP address (0 NO, 1 Yes). This control is added because the IP address query is time-consu

Solution for slow SQL query caused by custom functions, function SQL During the report process, one report queries the exchange rate of the corresponding currency, and the exchange rate is in another table, the condition for querying the exchange rate is to query the exchange rate of the previous month of the statist

SQL paging query Stored Procedure Code sharing, SQL stored procedure For more information, see the code. ---------------------------------------- Author: Zhang Xinyu ----- time: 2013-06-28 ----- Introduction: query by parameters and conditions by PAGE ------------------------------------- Create proc [dbo]. [Up_PagingQ

An additional column of serial numbers is automatically added to the SQL statement query results, and an SQL column is automatically added. Sqlserver It can be implemented using the row_number function. As follows: SELECT *, row_number () OVER (order by score (column name) DESC) AS rank FROM score The SQL