- Release Notes and Announcements
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- Data Processing Functions
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- Flow Control
- Row Processing Functions
- Field Processing Functions
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- Time Value Processing Functions
- String Processing Functions
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- Logical Expression Functions
- Processing Cases
- Log Shipping
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- Function Processing
- Historical Documentation
- Best Practices
- Developer Guide
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- Making API Requests
- Log Topic APIs
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- CKafka Shipping Task APIs
- Native Kafka Production and Consumption APIs
- Data Types
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- CLS API 2017
- Request Signature
- API Overview
- Collection Configuration
- Consumption Management
- Common Request Headers
- Common Response Headers
- Log Management
- Logset Management
- Log Topic Management
- Shipping Task Management (COS)
- Shipping Task Management (SCF)
- Shipping Task Management (CKafka)
- Machine Group Management
- Consumption Management
- Index Management
- Error Codes
- FAQs
- CLS Service Level Agreement
- Contact Us
- Glossary
- Release Notes and Announcements
- User Tutorial
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Resource Management
- Permission Management
- Log Collection
- Collection Overview
- Collection by LogListener
- Uploading Log via Kafka
- Uploading Logs via Logback Appender
- Uploading Logs via Loghub log4j Appender
- Collection via SDK
- Importing Data
- Tencent Cloud Service Log Access
- Log Storage
- Log Search and Analytic
- Overview and Syntax Rules
- Configuring Index
- Analysis Syntax
- Analytic Functions
- String Function
- Date and Time Functions
- IP Geographic Function
- URL Function
- Mathematical Calculation Functions
- Mathematical Statistical Function
- General Aggregate Functions
- Geospatial Function
- Binary String Function
- Estimation Function
- Type Conversion Function
- Logical Function
- Operators
- Bitwise Operation
- Regular Expression Function
- Lambda Function
- Conditional Expressions
- Array Functions
- Interval-Valued Comparison and Periodicity-Valued Comparison Functions
- JSON Functions
- Window Functions
- Quick Analysis
- Context Search and Analysis
- Downloading Log
- Visual Analysis
- Data Processing
- Creating a Processing Task
- Viewing Data Processing Details
- Data Processing Functions
- Function Overview
- Key-Value Extraction Functions
- Enrichment Functions
- Flow Control
- Row Processing Functions
- Field Processing Functions
- Value Structuring Functions
- Regular Expression Processing Functions
- Time Value Processing Functions
- String Processing Functions
- Type Conversion Functions
- Logical Expression Functions
- Processing Cases
- Log Shipping
- Monitoring Alarm
- Function Processing
- Historical Documentation
- Best Practices
- Developer Guide
- API Documentation
- History
- API Category
- Making API Requests
- Log Topic APIs
- Logset APIs
- Topic Partition APIs
- Collection APIs
- Index APIs
- Log APIs
- Alarm Policy APIs
- Collection Configuration APIs
- COS Shipping Task APIs
- CKafka Shipping Task APIs
- Native Kafka Production and Consumption APIs
- Data Types
- Error Codes
- CLS API 2017
- Request Signature
- API Overview
- Collection Configuration
- Consumption Management
- Common Request Headers
- Common Response Headers
- Log Management
- Logset Management
- Log Topic Management
- Shipping Task Management (COS)
- Shipping Task Management (SCF)
- Shipping Task Management (CKafka)
- Machine Group Management
- Consumption Management
- Index Management
- Error Codes
- FAQs
- CLS Service Level Agreement
- Contact Us
- Glossary
The AS clause is used to specify an alias for a column (KEY).
Syntax Format
* | SELECT column name (KEY) AS alias
Syntax Sample
Counting access requests
* | SELECT COUNT(*) AS PV
Yes
No
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