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Add EscapeLikeValue

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sunkaixuan
2025-04-29 19:01:40 +08:00
parent 45dd4546c6
commit 18b2b031f2
1 changed files with 84 additions and 0 deletions
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84
Src/Asp.NetCore2/SqlSugar/Utilities/UtilMethods.cs
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@@ -18,6 +18,90 @@ namespace SqlSugar
{ {
public class UtilMethods public class UtilMethods
{ {
public static string EscapeLikeValue(DbType dbType, string value, char wildcard='%')
{
if (string.IsNullOrEmpty(value))
return value;
string wildcardStr = wildcard.ToString();
switch (dbType)
{
// 支持标准 SQL LIKE 转义，通常使用中括号 [] 或反斜杠 \ 进行转义
case DbType.SqlServer:
case DbType.Access:
case DbType.Odbc:
case DbType.TDSQLForPGODBC:
// SQL Server 使用中括号转义 %, _ 等
value = value.Replace("[", "[[]")
.Replace("]", "[]]")
.Replace(wildcardStr, $"[{wildcard}]");
break;
// PostgreSQL 风格数据库，使用反斜杠进行 LIKE 转义
case DbType.PostgreSQL:
case DbType.OpenGauss:
case DbType.TDSQL:
case DbType.GaussDB:
case DbType.GaussDBNative:
value = value.Replace("\\", "\\\\")
.Replace(wildcardStr, "\\" + wildcard);
break;
// MySQL 和兼容库，使用反斜杠进行转义
case DbType.MySql:
case DbType.MySqlConnector:
case DbType.Tidb:
case DbType.PolarDB:
case DbType.OceanBase:
value = value.Replace("\\", "\\\\")
.Replace(wildcardStr, "\\" + wildcard);
break;
// Oracle 风格使用 ESCAPE 字符
case DbType.Oracle:
case DbType.OceanBaseForOracle:
case DbType.HG:
case DbType.Dm:
case DbType.GBase:
case DbType.DB2:
case DbType.HANA:
case DbType.GoldenDB:
value = value.Replace("\\", "\\\\")
.Replace(wildcardStr, "\\" + wildcard);
break;
// Sqlite 通常使用反斜杠作为转义符
case DbType.Sqlite:
value = value.Replace("\\", "\\\\")
.Replace(wildcardStr, "\\" + wildcard);
break;
// DuckDB 和 QuestDB 类似 PostgreSQL
case DbType.DuckDB:
case DbType.QuestDB:
value = value.Replace("\\", "\\\\")
.Replace(wildcardStr, "\\" + wildcard);
break;
// Doris、Xugu、Vastbase 等默认使用反斜杠
case DbType.Doris:
case DbType.Xugu:
case DbType.Vastbase:
value = value.Replace("\\", "\\\\")
.Replace(wildcardStr, "\\" + wildcard);
break;
// ClickHouse 和 Kdbndp、Oscar、Custom 处理同上
default:
value = value.Replace("\\", "\\\\")
.Replace(wildcardStr, "\\" + wildcard);
break;
}
return value;
}
public static List<SugarParameter> CopySugarParameters(List<SugarParameter> pars) public static List<SugarParameter> CopySugarParameters(List<SugarParameter> pars)
{ {