mysql全文返回奇數值

Question

我想創建一個搜索工具，它需要一個文本字段，可以包含一些或所有的標題，一個或多個作者的名稱以任何順序，和抽象中的術語，並試圖找到最有可能是用戶正在尋找的出版物。但是返回的排名是關閉的。

即使輸入的文本是標題開頭的單詞，如果我通過MATCH結果排序，理想的結果是沒有位於結果頂部附近的位置。

有關創建結果的準確排名的更好解決方案的任何想法？

SQL

SELECT `title`, (MATCH (`title`) AGAINST ("Data Trends #55")) AS `rank_title` 
FROM `tblPublications` 
HAVING (`rank_title`) > 1 
    ORDER BY `rank_title` DESC 

數據

title rank_title 
Data Trends #140: The Role of Data Collection and Evaluation in Supporting Systems Change. 3.2141819000244 
Data Trends #70: From Incarceration to Community. 2.7096807956696 
Data Trends #12: Under Court Order. 2.7096807956696 
Data Trends #78: Inclusion in Schools. 2.7096807956696 
Data Trends #43: Paraprofessionals in Educational Settings. 2.6802139282227 
Data Trends #35: Respite Care and Outcome. 2.6802139282227 
Data Trends #08: Developments in Systems of Care. 2.6802139282227 
Data Trends #07: Development of an Outcome Evaluation. 2.6802139282227 
Data Trends #03: Families as Researchers and Evaluators. 2.6802139282227 
Data Trends #02: Caregiver Enrichment and Stress. 2.6802139282227 
Data Trends #97: The Relationships Between Poverty and Psychopathology. 2.6802139282227 
Data Trends #111: Stigma and Mental Illness. 2.6802139282227 
Data Trends #115: Building on Caregiver Strengths. 2.6802139282227 
Data Trends #142: Defining the Wraparound Process. 2.6802139282227 
Data Trends #71: Family Interventions in Serious Mental Illness. 2.6513810157776 
Data Trends #63: Implementing IDEA '97 Disciplinary Provisions. 2.6513810157776 
Data Trends #57: Using the Parents as Partners Principle with SED Children. 2.6513810157776 
Data Trends #49: Cultural Competence: Caregiver Perspectives. 2.6513810157776 
Data Trends #47: Service Use & Intensive Family Preservation. 2.6513810157776 
Data Trends #44: Mood Disorders: Treatment Patterns in an HMO. 2.6513810157776 
Data Trends #38: Adolescent Drug Treatment and Outcome. 2.6513810157776 
Data Trends #34: Family-Centered Early Intervention. 2.6513810157776 
Data Trends #31: Juvenile Justice and Mental Health. 2.6513810157776 
Data Trends #25: Children's Mental Health in the Media. 2.6513810157776 
Data Trends #18: Attribution in Children's Mental Health. 2.6513810157776 
Data Trends #15: Mechanisms of Change in Multisystemic Therapy. 2.6513810157776 
Data Trends #10: Toxic Threats to Child Development. 2.6513810157776 
Data Trends #73: Having a Brother with Emotional and/or Behavioral Challenges. 2.6513810157776 
Data Trends #74: Research and Advocacy for Policy Change. 2.6513810157776 
Data Trends #79: Family Perspectives on Having a Child with a Disability. 2.6513810157776 
Data Trends #81: Explaining the Gap Between Mental Health Need and Service Use. 2.6513810157776 
Data Trends #91: The Implications of Incarceration for Families and Children. 2.6513810157776 
Data Trends #84: Working Relationships across Diverse Communities. 2.6513810157776 
Data Trends #86: Community Interventions and Effective Prevention. 2.6513810157776 
Data Trends #95: Maternal Employment when Children Have Disabilities. 2.6513810157776 
Data Trends #99: Clinicians and How They Use and View Outcome Measurement. 2.6513810157776 
Data Trends #108: Practice and Process in Wraparound Teamwork. 2.6513810157776 
Data Trends #122: Outcomes for Youth Following Psychiatric Emergencies. 2.6513810157776 
Data Trends #133: Evaluating treatment for homeless adolescents 2.6513810157776 
Data Trends #156: Assessing the Sustainability of Systems of Care. 2.6513810157776 
Data Trends #159: Out-of-Home Placements Within Systems of Care 2.6513810157776 
Data Trends #64: Impact of Poverty on Family Quality of Life. 2.6231617927551 
Data Trends #54: Mental Health Referral in Juvenile Justice. 2.6231617927551 
Data Trends #53: Clinical Profiles of Youth in a System of Care. 2.6231617927551 
Data Trends #45: Mood Disorders: Accuracy of Screening Instruments. 2.6231617927551 
Data Trends #39: Violence: Emotional & Behavioral Impact & Prevention. 2.6231617927551 
Data Trends #37: Racial Differences in Service Placement Patterns. 2.6231617927551 
Data Trends #28: Suicidal Ideation, Depression, and Help-Seeking Among Adolescents. 2.6231617927551 
Data Trends #26: Foster Care: Importance of Training and Support. 2.6231617927551 
Data Trends #24: Needs Assessment and Service Coordination in an Inner City Neighborhood. 2.6231617927551 
Data Trends #19: Custody Relinquishment: Impact of Research on Policy. 2.6231617927551 
Data Trends #17: Offering Technical Assistance to Native Families. 2.6231617927551 
Data Trends #13: Child Abuse and Neglect in Indian Country. 2.6231617927551 
Data Trends #05: Consumer Satisfaction with Mental Health Services. 2.6231617927551 
Data Trends #76: Community-Based Interventions for Affective Disorders. 2.6231617927551 
Data Trends #77: Adolescent Help-Seeking Behavior: Role of the Internet. 2.6231617927551 
Data Trends #80: Impact of Support on Adolescent Mental Health. 2.6231617927551 
Data Trends #85: Culture-Centered Practice in Services for Children. 2.6231617927551 
Data Trends #90: Exposure to Violence, Stress, Protective Factors, and Well-being. 2.6231617927551 
Data Trends #92: Depictions of Mental Illness in Children's Media. 2.6231617927551 
Data Trends #105: Collective socialization and child conduct problems. 2.6231617927551 
Data Trends #116: Domestic Violence and Children's Mental Health. 2.6231617927551 
Data Trends #121: Quality and Individualization in Wraparound Team Planning. 2.6231617927551 
Data Trends #124: The Stigmatization of Mental Illness in Children and Families. 2.6231617927551 
Data Trends #125: Neighborhood Residence and the Problems of School-Age Children. 2.6231617927551 
Data Trends #149: What Constitutes Youth Involvement in Systems of Care? 2.6231617927551 
Data Trends #151: Are Brothers and Sisters a Good Source of Support? 2.6231617927551 
Data Trends #150: Understanding ADHD: Examining Racial Differences. 2.6231617927551 
Data Trends #152: Family Participation in Action: Are Families Actually Involved? 2.6231617927551 
Data Trends #158: Children's Perspectives of Their Mental Health Services. 2.6231617927551 
Data Trends #160: Peer Stigmatization of Childhood Depression and ADHD 2.6231617927551 
Data Trends #68: Prevalence of Psychiatric Disorders in Youth in Juvenile Detention. 2.5955367088318 
Data Trends #59: Factors Associated with Response Inconsistency in Structured Diagnostic Interviews. 2.5955367088318 
Data Trends #55: Mental Health Screening Instruments for use in Juvenile Justice. 2.5955367088318 

Answer 1

單詞默認最小長度爲4作爲described here。有關更改的信息描述如下here。因此搜索Data Trends #55大概等於Data Trends。顯示結果集中的第一行驗證標題中第二次有Data字，這可能解釋了爲什麼它排名最高。