- skip to content

# Database Abstraction Layer

### User Tools

- Login

### Site Tools

- Recent changes
- Media Manager
- Sitemap

### Sidebar

##### Resources

- Reference Manual
- User Guide
- The Data Dictionary
- ADOdb-xmlschema
- ADOdb Active Record
- Performance Monitoring
- Date/Time Library
- Session Management Library
- Unsupported Addons
- Coding Standards

##### Supported Databases

- Access
- ADO
- CSV
- Firebird
- Frontbase
- IBM DB2
- Informix
- Interbase
- LDAP
- Microsoft SQL Server
- MySQL
- Netezza
- ODBC
- ODBTP
- Oracle
- PDO
- Postgresql
- SAP ADS
- SAP ASE
- SAP Maxdb
- SAP Sqlanywhere
- Sqlite
- Sybase
- Plain Text
- Visual Foxpro

##### Other

- Feature Comparison Matrix
- Connection Matrix
- Include File Guide

v5:userguide:adodb_stringmax

# Maximum String Lengths

##### From: ADOdb V5.21.0

The methods charmax and textmax return the maximum length of strings that can be inserted into metaType C and X fields. The following constants are defined to assist in their use:

Constant | Value | Description
--- | --- | ---
ADODB_STRINGMAX_NOTSET | -1 | The maximum length that can be inserted has not yet been determined or is not supported
ADODB_STRINGMAX_NOLIMIT | -2 | The DBMS places no limit on the size of data that can be inserted. This does not mean that the size is infinite, as there may be limits associated with hardware or operating system

v5/userguide/adodb_stringmax.txt · Last modified: 2016/01/16 18:48 by mnewnham

### Page Tools

- Show pagesource
- Old revisions
- Backlinks
- Rename Page
- Back to top