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Editorial Team
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Asked: 2026-06-15T22:04:50+00:00

I have Sql Server database and my table has 1500000 rows …because of large

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I have Sql Server database and my table has 1500000 rows …because of large amount of data
execution time of my following procedure is very high

TABLE—–

CREATE TABLE [dbo].[MyTable](
[Id] [bigint] IDENTITY(1,1) NOT NULL,
[Link] [text] NULL,
[Title] [text] NULL,
[Duration] [text] NULL,
[Image] [text] NULL,
[Embbed] [text] NULL,
[Keywords] [text] NULL,
[Category] [text] NULL,
PRIMARY KEY CLUSTERED 
(
[Id] ASC
)
WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO

PROCEDURE——

ALTER PROCEDURE [dbo].[Search]
 @SearchQuery varchar(1000),
 @Id bigint
 As
BEGIN
  Select top 100 * from MyTable
  where Id > @Id and Title like '%'+@SearchQuery+'%'

can any one help me how do I minimise execution time of sql query on table of 1500000 rows?

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1 Answer

  1. Editorial Team

    You force a table scan by:

    Title like ‘%’+@SearchQuery+’%’

    Actually no – you force definitely the non-use of an index on Title. As indices go “left to right” the “some point in the middle” query thing just turns off index use.

    if ID leaves a lot to search – there you go, especially when you combine that with inappropriately slow hardware (after all 1.5 million is small data).

    You either get rid of the first “%” in the LIKE statement – so an index can be used – or use full text search, which will already break up the words in the index, but even then you better get rid of the first “%”.

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