Release Notes
- v2.5
- v2.4
- v2.3
- v2.2
- v2.1
- v2.0
- v1.19

Introduction
Quick Start
Table Design
Data Loading
Data Export
Using StarRocks
Reference
- SQL Reference
- Function Reference
  - Java UDFs
  - Window Function
  - Date Functions
  - Aggregate Functions
  - Geographic Functions
  - String Functions
  - JSON Functions
    - Overview of JSON functions and operators
    - JSON constructor functions
    - JSON query and processing functions
    - JSON operators
  - Aggregate Functions
  - Bitmap Functions
  - Array Functions
  - cast function
  - hash function
  - Cryptographic Functions
    - md5
    - sha2
  - Math Functions
    - RAND
    - square
  - Utility Functions
- System variables
- Error code
- System limits
Administration
- Build in Docker
- Manage a cluster
- Configuration
- Scale In and Out
- Backup and Restore
- Configure a time zone
- Data Recovery
  - Data Recovery
  - Restore FEs
- Replica
- Query Planning
- Profiling
- Monitor and Alert
- User Privilege
- Authentication
- Resource Management
FAQ
- Deploy
- Data Migration
  - Data Ingestion
  - Data Export
- SQL
- Other FAQs
Benchmark
- SSB Benchmark
- TPC-H Benchmark

Developers
- Contribute to StarRocks
- Code Style Guides
  - protobuf style guides
  - thrift style guides
- Use the debuginfo file for debugging
- Development Environment
- Trace Tools
  - Trace
Integration
- Integrate with StarRocks
- Authenticate to AWS resources

Edit

ascii

description

Syntax

INT ascii(VARCHAR str)

This function returns the ascii value of the leftmost character of a given string.

example

MySQL > select ascii('1');
+------------+
| ascii('1') |
+------------+
|         49 |
+------------+

MySQL > select ascii('234');
+--------------+
| ascii('234') |
+--------------+
|           50 |
+--------------+

keyword

ASCII

Edit

In this article

ascii